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Finding the Fourth Proportional to 238,515.60, 357,807.42 and 80,789.16

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Solution

The fourth proportional to 238,515.60, 357,807.42 and 80,789.16 is: 121,195.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,515.60 : 357,807.42 = 80,789.16 : x
  2. Step 2: Convert to fraction form
    238,515.60/357,807.42 = 80,789.16/x
  3. Step 3: Cross multiply
    238,515.60x = 357,807.42 × 80,789.16
  4. Step 4: Simplify right side
    238,515.60x = 28,906,960,903.57
  5. Step 5: Solve for x
    x = 28,906,960,903.57/238,515.60
  6. Step 6: Final answer
    x = 121,195.26

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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.