Home / 875,200.90-1,312,801.35-210,352.90

Finding the Fourth Proportional to 875,200.90, 1,312,801.35 and 210,352.90

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Solution

The fourth proportional to 875,200.90, 1,312,801.35 and 210,352.90 is: 315,529.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,200.90 : 1,312,801.35 = 210,352.90 : x
  2. Step 2: Convert to fraction form
    875,200.90/1,312,801.35 = 210,352.90/x
  3. Step 3: Cross multiply
    875,200.90x = 1,312,801.35 × 210,352.90
  4. Step 4: Simplify right side
    875,200.90x = 276,151,571,096.42
  5. Step 5: Solve for x
    x = 276,151,571,096.42/875,200.90
  6. Step 6: Final answer
    x = 315,529.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.