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Finding the Fourth Proportional to 486,719.64, 730,081.08 and 149,757.96

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Solution

The fourth proportional to 486,719.64, 730,081.08 and 149,757.96 is: 224,637.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,719.64 : 730,081.08 = 149,757.96 : x
  2. Step 2: Convert to fraction form
    486,719.64/730,081.08 = 149,757.96/x
  3. Step 3: Cross multiply
    486,719.64x = 730,081.08 × 149,757.96
  4. Step 4: Simplify right side
    486,719.64x = 109,335,453,175.40
  5. Step 5: Solve for x
    x = 109,335,453,175.40/486,719.64
  6. Step 6: Final answer
    x = 224,637.44

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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.