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Finding the Fourth Proportional to 347,959.30, 488,542.70 and 347,959.30

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Solution

The fourth proportional to 347,959.30, 488,542.70 and 347,959.30 is: 488,542.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,959.30 : 488,542.70 = 347,959.30 : x
  2. Step 2: Convert to fraction form
    347,959.30/488,542.70 = 347,959.30/x
  3. Step 3: Cross multiply
    347,959.30x = 488,542.70 × 347,959.30
  4. Step 4: Simplify right side
    347,959.30x = 169,992,975,912.11
  5. Step 5: Solve for x
    x = 169,992,975,912.11/347,959.30
  6. Step 6: Final answer
    x = 488,542.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.