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Finding the Fourth Proportional to 439,963.80, 659,816.10 and 173,635.80

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Solution

The fourth proportional to 439,963.80, 659,816.10 and 173,635.80 is: 260,402.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,963.80 : 659,816.10 = 173,635.80 : x
  2. Step 2: Convert to fraction form
    439,963.80/659,816.10 = 173,635.80/x
  3. Step 3: Cross multiply
    439,963.80x = 659,816.10 × 173,635.80
  4. Step 4: Simplify right side
    439,963.80x = 114,567,696,376.38
  5. Step 5: Solve for x
    x = 114,567,696,376.38/439,963.80
  6. Step 6: Final answer
    x = 260,402.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.