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Finding the Fourth Proportional to 230,372.48, 317,912.64 and 129,802.88

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Solution

The fourth proportional to 230,372.48, 317,912.64 and 129,802.88 is: 179,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,372.48 : 317,912.64 = 129,802.88 : x
  2. Step 2: Convert to fraction form
    230,372.48/317,912.64 = 129,802.88/x
  3. Step 3: Cross multiply
    230,372.48x = 317,912.64 × 129,802.88
  4. Step 4: Simplify right side
    230,372.48x = 41,265,976,260.40
  5. Step 5: Solve for x
    x = 41,265,976,260.40/230,372.48
  6. Step 6: Final answer
    x = 179,127.20

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1.5x scale

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.