Home / 321,780.24-482,671.96-132,343.92

Finding the Fourth Proportional to 321,780.24, 482,671.96 and 132,343.92

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Solution

The fourth proportional to 321,780.24, 482,671.96 and 132,343.92 is: 198,516.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,780.24 : 482,671.96 = 132,343.92 : x
  2. Step 2: Convert to fraction form
    321,780.24/482,671.96 = 132,343.92/x
  3. Step 3: Cross multiply
    321,780.24x = 482,671.96 × 132,343.92
  4. Step 4: Simplify right side
    321,780.24x = 63,878,699,260.48
  5. Step 5: Solve for x
    x = 63,878,699,260.48/321,780.24
  6. Step 6: Final answer
    x = 198,516.54

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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.