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Finding the Fourth Proportional to 377,472.25, 520,915.35 and 207,710.02

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Solution

The fourth proportional to 377,472.25, 520,915.35 and 207,710.02 is: 286,641.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,472.25 : 520,915.35 = 207,710.02 : x
  2. Step 2: Convert to fraction form
    377,472.25/520,915.35 = 207,710.02/x
  3. Step 3: Cross multiply
    377,472.25x = 520,915.35 × 207,710.02
  4. Step 4: Simplify right side
    377,472.25x = 108,199,337,766.81
  5. Step 5: Solve for x
    x = 108,199,337,766.81/377,472.25
  6. Step 6: Final answer
    x = 286,641.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.