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Finding the Fourth Proportional to 230,181.32, 317,658.80 and 126,819.72

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Solution

The fourth proportional to 230,181.32, 317,658.80 and 126,819.72 is: 175,015.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,181.32 : 317,658.80 = 126,819.72 : x
  2. Step 2: Convert to fraction form
    230,181.32/317,658.80 = 126,819.72/x
  3. Step 3: Cross multiply
    230,181.32x = 317,658.80 × 126,819.72
  4. Step 4: Simplify right side
    230,181.32x = 40,285,400,071.54
  5. Step 5: Solve for x
    x = 40,285,400,071.54/230,181.32
  6. Step 6: Final answer
    x = 175,015.94

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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.