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Finding the Fourth Proportional to 243,461.12, 365,249.92 and 77,248.96

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Solution

The fourth proportional to 243,461.12, 365,249.92 and 77,248.96 is: 115,891.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,461.12 : 365,249.92 = 77,248.96 : x
  2. Step 2: Convert to fraction form
    243,461.12/365,249.92 = 77,248.96/x
  3. Step 3: Cross multiply
    243,461.12x = 365,249.92 × 77,248.96
  4. Step 4: Simplify right side
    243,461.12x = 28,215,176,460.08
  5. Step 5: Solve for x
    x = 28,215,176,460.08/243,461.12
  6. Step 6: Final answer
    x = 115,891.92

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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.