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Finding the Fourth Proportional to 377,468.97, 520,891.50 and 205,387.61

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Solution

The fourth proportional to 377,468.97, 520,891.50 and 205,387.61 is: 283,426.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,468.97 : 520,891.50 = 205,387.61 : x
  2. Step 2: Convert to fraction form
    377,468.97/520,891.50 = 205,387.61/x
  3. Step 3: Cross multiply
    377,468.97x = 520,891.50 × 205,387.61
  4. Step 4: Simplify right side
    377,468.97x = 106,984,657,649.86
  5. Step 5: Solve for x
    x = 106,984,657,649.86/377,468.97
  6. Step 6: Final answer
    x = 283,426.36

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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.