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Finding the Fourth Proportional to 243,755.55, 365,719.92 and 108,807.39

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Solution

The fourth proportional to 243,755.55, 365,719.92 and 108,807.39 is: 163,249.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,755.55 : 365,719.92 = 108,807.39 : x
  2. Step 2: Convert to fraction form
    243,755.55/365,719.92 = 108,807.39/x
  3. Step 3: Cross multiply
    243,755.55x = 365,719.92 × 108,807.39
  4. Step 4: Simplify right side
    243,755.55x = 39,793,029,966.21
  5. Step 5: Solve for x
    x = 39,793,029,966.21/243,755.55
  6. Step 6: Final answer
    x = 163,249.74

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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.