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Finding the Fourth Proportional to 243,839.01, 365,770.75 and 77,639.97

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Solution

The fourth proportional to 243,839.01, 365,770.75 and 77,639.97 is: 116,463.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,839.01 : 365,770.75 = 77,639.97 : x
  2. Step 2: Convert to fraction form
    243,839.01/365,770.75 = 77,639.97/x
  3. Step 3: Cross multiply
    243,839.01x = 365,770.75 × 77,639.97
  4. Step 4: Simplify right side
    243,839.01x = 28,398,430,056.88
  5. Step 5: Solve for x
    x = 28,398,430,056.88/243,839.01
  6. Step 6: Final answer
    x = 116,463.85

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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.