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Finding the Fourth Proportional to 377,538.66, 521,007.03 and 207,776.70

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Solution

The fourth proportional to 377,538.66, 521,007.03 and 207,776.70 is: 286,733.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,538.66 : 521,007.03 = 207,776.70 : x
  2. Step 2: Convert to fraction form
    377,538.66/521,007.03 = 207,776.70/x
  3. Step 3: Cross multiply
    377,538.66x = 521,007.03 × 207,776.70
  4. Step 4: Simplify right side
    377,538.66x = 108,253,121,370.20
  5. Step 5: Solve for x
    x = 108,253,121,370.20/377,538.66
  6. Step 6: Final answer
    x = 286,733.87

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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.