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Finding the Fourth Proportional to 377,424.43, 520,853.66 and 207,658.87

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Solution

The fourth proportional to 377,424.43, 520,853.66 and 207,658.87 is: 286,573.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,424.43 : 520,853.66 = 207,658.87 : x
  2. Step 2: Convert to fraction form
    377,424.43/520,853.66 = 207,658.87/x
  3. Step 3: Cross multiply
    377,424.43x = 520,853.66 × 207,658.87
  4. Step 4: Simplify right side
    377,424.43x = 108,159,882,470.96
  5. Step 5: Solve for x
    x = 108,159,882,470.96/377,424.43
  6. Step 6: Final answer
    x = 286,573.61

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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.