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Finding the Fourth Proportional to 360,375.12, 540,623.52 and 123,660.72

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Solution

The fourth proportional to 360,375.12, 540,623.52 and 123,660.72 is: 185,511.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,375.12 : 540,623.52 = 123,660.72 : x
  2. Step 2: Convert to fraction form
    360,375.12/540,623.52 = 123,660.72/x
  3. Step 3: Cross multiply
    360,375.12x = 540,623.52 × 123,660.72
  4. Step 4: Simplify right side
    360,375.12x = 66,853,893,732.13
  5. Step 5: Solve for x
    x = 66,853,893,732.13/360,375.12
  6. Step 6: Final answer
    x = 185,511.96

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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.