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Finding the Fourth Proportional to 323,752.32, 485,693.76 and 136,763.52

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Solution

The fourth proportional to 323,752.32, 485,693.76 and 136,763.52 is: 205,172.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,752.32 : 485,693.76 = 136,763.52 : x
  2. Step 2: Convert to fraction form
    323,752.32/485,693.76 = 136,763.52/x
  3. Step 3: Cross multiply
    323,752.32x = 485,693.76 × 136,763.52
  4. Step 4: Simplify right side
    323,752.32x = 66,425,188,259.64
  5. Step 5: Solve for x
    x = 66,425,188,259.64/323,752.32
  6. Step 6: Final answer
    x = 205,172.86

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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.