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Finding the Fourth Proportional to 377,624.90, 521,130.56 and 207,859.02

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Solution

The fourth proportional to 377,624.90, 521,130.56 and 207,859.02 is: 286,849.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,624.90 : 521,130.56 = 207,859.02 : x
  2. Step 2: Convert to fraction form
    377,624.90/521,130.56 = 207,859.02/x
  3. Step 3: Cross multiply
    377,624.90x = 521,130.56 × 207,859.02
  4. Step 4: Simplify right side
    377,624.90x = 108,321,687,493.65
  5. Step 5: Solve for x
    x = 108,321,687,493.65/377,624.90
  6. Step 6: Final answer
    x = 286,849.96

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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.