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Finding the Fourth Proportional to 475,211.53, 712,757.80 and 155,336.59

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Solution

The fourth proportional to 475,211.53, 712,757.80 and 155,336.59 is: 232,985.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,211.53 : 712,757.80 = 155,336.59 : x
  2. Step 2: Convert to fraction form
    475,211.53/712,757.80 = 155,336.59/x
  3. Step 3: Cross multiply
    475,211.53x = 712,757.80 × 155,336.59
  4. Step 4: Simplify right side
    475,211.53x = 110,717,366,147.90
  5. Step 5: Solve for x
    x = 110,717,366,147.90/475,211.53
  6. Step 6: Final answer
    x = 232,985.44

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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.