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Finding the Fourth Proportional to 360,375.72, 540,613.24 and 123,687.64

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Solution

The fourth proportional to 360,375.72, 540,613.24 and 123,687.64 is: 185,548.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,375.72 : 540,613.24 = 123,687.64 : x
  2. Step 2: Convert to fraction form
    360,375.72/540,613.24 = 123,687.64/x
  3. Step 3: Cross multiply
    360,375.72x = 540,613.24 × 123,687.64
  4. Step 4: Simplify right side
    360,375.72x = 66,867,175,808.35
  5. Step 5: Solve for x
    x = 66,867,175,808.35/360,375.72
  6. Step 6: Final answer
    x = 185,548.50

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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.