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Finding the Fourth Proportional to 243,576.10, 365,591.96 and 123,718.78

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Solution

The fourth proportional to 243,576.10, 365,591.96 and 123,718.78 is: 185,693.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,576.10 : 365,591.96 = 123,718.78 : x
  2. Step 2: Convert to fraction form
    243,576.10/365,591.96 = 123,718.78/x
  3. Step 3: Cross multiply
    243,576.10x = 365,591.96 × 123,718.78
  4. Step 4: Simplify right side
    243,576.10x = 45,230,591,269.01
  5. Step 5: Solve for x
    x = 45,230,591,269.01/243,576.10
  6. Step 6: Final answer
    x = 185,693.88

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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.