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Finding the Fourth Proportional to 515,299.89, 773,002.86 and 178,339.95

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Solution

The fourth proportional to 515,299.89, 773,002.86 and 178,339.95 is: 267,528.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,299.89 : 773,002.86 = 178,339.95 : x
  2. Step 2: Convert to fraction form
    515,299.89/773,002.86 = 178,339.95/x
  3. Step 3: Cross multiply
    515,299.89x = 773,002.86 × 178,339.95
  4. Step 4: Simplify right side
    515,299.89x = 137,857,291,402.26
  5. Step 5: Solve for x
    x = 137,857,291,402.26/515,299.89
  6. Step 6: Final answer
    x = 267,528.28

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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.