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Finding the Fourth Proportional to 339,773.80, 509,531.10 and 103,037.80

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Solution

The fourth proportional to 339,773.80, 509,531.10 and 103,037.80 is: 154,517.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,773.80 : 509,531.10 = 103,037.80 : x
  2. Step 2: Convert to fraction form
    339,773.80/509,531.10 = 103,037.80/x
  3. Step 3: Cross multiply
    339,773.80x = 509,531.10 × 103,037.80
  4. Step 4: Simplify right side
    339,773.80x = 52,500,963,575.58
  5. Step 5: Solve for x
    x = 52,500,963,575.58/339,773.80
  6. Step 6: Final answer
    x = 154,517.40

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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.