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Finding the Fourth Proportional to 230,240.68, 317,744.58 and 129,648.04

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Solution

The fourth proportional to 230,240.68, 317,744.58 and 129,648.04 is: 178,921.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,240.68 : 317,744.58 = 129,648.04 : x
  2. Step 2: Convert to fraction form
    230,240.68/317,744.58 = 129,648.04/x
  3. Step 3: Cross multiply
    230,240.68x = 317,744.58 × 129,648.04
  4. Step 4: Simplify right side
    230,240.68x = 41,194,962,017.62
  5. Step 5: Solve for x
    x = 41,194,962,017.62/230,240.68
  6. Step 6: Final answer
    x = 178,921.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.