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Finding the Fourth Proportional to 377,657.68, 521,167.62 and 207,890.50

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Solution

The fourth proportional to 377,657.68, 521,167.62 and 207,890.50 is: 286,888.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,657.68 : 521,167.62 = 207,890.50 : x
  2. Step 2: Convert to fraction form
    377,657.68/521,167.62 = 207,890.50/x
  3. Step 3: Cross multiply
    377,657.68x = 521,167.62 × 207,890.50
  4. Step 4: Simplify right side
    377,657.68x = 108,345,797,105.61
  5. Step 5: Solve for x
    x = 108,345,797,105.61/377,657.68
  6. Step 6: Final answer
    x = 286,888.90

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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.