Home / 875,141.55-1,312,712.19-210,293.55

Finding the Fourth Proportional to 875,141.55, 1,312,712.19 and 210,293.55

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Solution

The fourth proportional to 875,141.55, 1,312,712.19 and 210,293.55 is: 315,440.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,141.55 : 1,312,712.19 = 210,293.55 : x
  2. Step 2: Convert to fraction form
    875,141.55/1,312,712.19 = 210,293.55/x
  3. Step 3: Cross multiply
    875,141.55x = 1,312,712.19 × 210,293.55
  4. Step 4: Simplify right side
    875,141.55x = 276,054,906,563.37
  5. Step 5: Solve for x
    x = 276,054,906,563.37/875,141.55
  6. Step 6: Final answer
    x = 315,440.29

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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.