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Finding the Fourth Proportional to 323,549.87, 485,326.02 and 98,909.43

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Solution

The fourth proportional to 323,549.87, 485,326.02 and 98,909.43 is: 148,364.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,549.87 : 485,326.02 = 98,909.43 : x
  2. Step 2: Convert to fraction form
    323,549.87/485,326.02 = 98,909.43/x
  3. Step 3: Cross multiply
    323,549.87x = 485,326.02 × 98,909.43
  4. Step 4: Simplify right side
    323,549.87x = 48,003,320,002.37
  5. Step 5: Solve for x
    x = 48,003,320,002.37/323,549.87
  6. Step 6: Final answer
    x = 148,364.52

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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.