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Finding the Fourth Proportional to 439,662.67, 659,572.98 and 155,517.91

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Solution

The fourth proportional to 439,662.67, 659,572.98 and 155,517.91 is: 233,304.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,662.67 : 659,572.98 = 155,517.91 : x
  2. Step 2: Convert to fraction form
    439,662.67/659,572.98 = 155,517.91/x
  3. Step 3: Cross multiply
    439,662.67x = 659,572.98 × 155,517.91
  4. Step 4: Simplify right side
    439,662.67x = 102,575,409,109.95
  5. Step 5: Solve for x
    x = 102,575,409,109.95/439,662.67
  6. Step 6: Final answer
    x = 233,304.80

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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.