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Finding the Fourth Proportional to 371,997.81, 557,652.47 and 135,276.93

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Solution

The fourth proportional to 371,997.81, 557,652.47 and 135,276.93 is: 202,790.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,997.81 : 557,652.47 = 135,276.93 : x
  2. Step 2: Convert to fraction form
    371,997.81/557,652.47 = 135,276.93/x
  3. Step 3: Cross multiply
    371,997.81x = 557,652.47 × 135,276.93
  4. Step 4: Simplify right side
    371,997.81x = 75,437,513,472.13
  5. Step 5: Solve for x
    x = 75,437,513,472.13/371,997.81
  6. Step 6: Final answer
    x = 202,790.21

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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.