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Finding the Fourth Proportional to 230,248.48, 317,741.52 and 129,678.88

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Solution

The fourth proportional to 230,248.48, 317,741.52 and 129,678.88 is: 178,956.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,248.48 : 317,741.52 = 129,678.88 : x
  2. Step 2: Convert to fraction form
    230,248.48/317,741.52 = 129,678.88/x
  3. Step 3: Cross multiply
    230,248.48x = 317,741.52 × 129,678.88
  4. Step 4: Simplify right side
    230,248.48x = 41,204,364,443.10
  5. Step 5: Solve for x
    x = 41,204,364,443.10/230,248.48
  6. Step 6: Final answer
    x = 178,956.08

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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.