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Finding the Fourth Proportional to 324,123.89, 447,298.13 and 178,929.33

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Solution

The fourth proportional to 324,123.89, 447,298.13 and 178,929.33 is: 246,926.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,123.89 : 447,298.13 = 178,929.33 : x
  2. Step 2: Convert to fraction form
    324,123.89/447,298.13 = 178,929.33/x
  3. Step 3: Cross multiply
    324,123.89x = 447,298.13 × 178,929.33
  4. Step 4: Simplify right side
    324,123.89x = 80,034,753,816.51
  5. Step 5: Solve for x
    x = 80,034,753,816.51/324,123.89
  6. Step 6: Final answer
    x = 246,926.43

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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.