Home / 521,131.17-781,727.74-201,285.46

Finding the Fourth Proportional to 521,131.17, 781,727.74 and 201,285.46

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Solution

The fourth proportional to 521,131.17, 781,727.74 and 201,285.46 is: 301,940.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,131.17 : 781,727.74 = 201,285.46 : x
  2. Step 2: Convert to fraction form
    521,131.17/781,727.74 = 201,285.46/x
  3. Step 3: Cross multiply
    521,131.17x = 781,727.74 × 201,285.46
  4. Step 4: Simplify right side
    521,131.17x = 157,350,427,740.66
  5. Step 5: Solve for x
    x = 157,350,427,740.66/521,131.17
  6. Step 6: Final answer
    x = 301,940.16

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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.