Home / 875,143.05-1,312,714.44-210,295.05

Finding the Fourth Proportional to 875,143.05, 1,312,714.44 and 210,295.05

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Solution

The fourth proportional to 875,143.05, 1,312,714.44 and 210,295.05 is: 315,442.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,143.05 : 1,312,714.44 = 210,295.05 : x
  2. Step 2: Convert to fraction form
    875,143.05/1,312,714.44 = 210,295.05/x
  3. Step 3: Cross multiply
    875,143.05x = 1,312,714.44 × 210,295.05
  4. Step 4: Simplify right side
    875,143.05x = 276,057,348,795.52
  5. Step 5: Solve for x
    x = 276,057,348,795.52/875,143.05
  6. Step 6: Final answer
    x = 315,442.54

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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.