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Finding the Fourth Proportional to 323,130.75, 484,761.74 and 136,142.25

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Solution

The fourth proportional to 323,130.75, 484,761.74 and 136,142.25 is: 204,241.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,130.75 : 484,761.74 = 136,142.25 : x
  2. Step 2: Convert to fraction form
    323,130.75/484,761.74 = 136,142.25/x
  3. Step 3: Cross multiply
    323,130.75x = 484,761.74 × 136,142.25
  4. Step 4: Simplify right side
    323,130.75x = 65,996,553,316.80
  5. Step 5: Solve for x
    x = 65,996,553,316.80/323,130.75
  6. Step 6: Final answer
    x = 204,241.02

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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.