Home / 321,780.76-444,057.45-178,541.83

Finding the Fourth Proportional to 321,780.76, 444,057.45 and 178,541.83

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Solution

The fourth proportional to 321,780.76, 444,057.45 and 178,541.83 is: 246,387.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,780.76 : 444,057.45 = 178,541.83 : x
  2. Step 2: Convert to fraction form
    321,780.76/444,057.45 = 178,541.83/x
  3. Step 3: Cross multiply
    321,780.76x = 444,057.45 × 178,541.83
  4. Step 4: Simplify right side
    321,780.76x = 79,282,829,748.13
  5. Step 5: Solve for x
    x = 79,282,829,748.13/321,780.76
  6. Step 6: Final answer
    x = 246,387.73

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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.