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Finding the Fourth Proportional to 323,513.39, 485,270.09 and 98,874.47

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Solution

The fourth proportional to 323,513.39, 485,270.09 and 98,874.47 is: 148,311.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,513.39 : 485,270.09 = 98,874.47 : x
  2. Step 2: Convert to fraction form
    323,513.39/485,270.09 = 98,874.47/x
  3. Step 3: Cross multiply
    323,513.39x = 485,270.09 × 98,874.47
  4. Step 4: Simplify right side
    323,513.39x = 47,980,820,034.88
  5. Step 5: Solve for x
    x = 47,980,820,034.88/323,513.39
  6. Step 6: Final answer
    x = 148,311.70

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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.