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Finding the Fourth Proportional to 287,753.43, 431,674.53 and 98,169.39

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Solution

The fourth proportional to 287,753.43, 431,674.53 and 98,169.39 is: 147,269.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,753.43 : 431,674.53 = 98,169.39 : x
  2. Step 2: Convert to fraction form
    287,753.43/431,674.53 = 98,169.39/x
  3. Step 3: Cross multiply
    287,753.43x = 431,674.53 × 98,169.39
  4. Step 4: Simplify right side
    287,753.43x = 42,377,225,288.64
  5. Step 5: Solve for x
    x = 42,377,225,288.64/287,753.43
  6. Step 6: Final answer
    x = 147,269.23

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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.