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Finding the Fourth Proportional to 243,616.27, 365,487.45 and 75,132.87

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Solution

The fourth proportional to 243,616.27, 365,487.45 and 75,132.87 is: 112,718.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,616.27 : 365,487.45 = 75,132.87 : x
  2. Step 2: Convert to fraction form
    243,616.27/365,487.45 = 75,132.87/x
  3. Step 3: Cross multiply
    243,616.27x = 365,487.45 × 75,132.87
  4. Step 4: Simplify right side
    243,616.27x = 27,460,121,067.48
  5. Step 5: Solve for x
    x = 27,460,121,067.48/243,616.27
  6. Step 6: Final answer
    x = 112,718.75

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1.5x scale

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.