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Finding the Fourth Proportional to 321,330.66, 481,522.36 and 178,979.97

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Solution

The fourth proportional to 321,330.66, 481,522.36 and 178,979.97 is: 268,206.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,330.66 : 481,522.36 = 178,979.97 : x
  2. Step 2: Convert to fraction form
    321,330.66/481,522.36 = 178,979.97/x
  3. Step 3: Cross multiply
    321,330.66x = 481,522.36 × 178,979.97
  4. Step 4: Simplify right side
    321,330.66x = 86,182,854,356.48
  5. Step 5: Solve for x
    x = 86,182,854,356.48/321,330.66
  6. Step 6: Final answer
    x = 268,206.14

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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.