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Finding the Fourth Proportional to 347,691.56, 522,336.70 and 245,344.38

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Solution

The fourth proportional to 347,691.56, 522,336.70 and 245,344.38 is: 368,580.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,691.56 : 522,336.70 = 245,344.38 : x
  2. Step 2: Convert to fraction form
    347,691.56/522,336.70 = 245,344.38/x
  3. Step 3: Cross multiply
    347,691.56x = 522,336.70 × 245,344.38
  4. Step 4: Simplify right side
    347,691.56x = 128,152,373,812.75
  5. Step 5: Solve for x
    x = 128,152,373,812.75/347,691.56
  6. Step 6: Final answer
    x = 368,580.63

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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.