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Finding the Fourth Proportional to 321,800.16, 444,062.88 and 178,551.12

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Solution

The fourth proportional to 321,800.16, 444,062.88 and 178,551.12 is: 246,388.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,800.16 : 444,062.88 = 178,551.12 : x
  2. Step 2: Convert to fraction form
    321,800.16/444,062.88 = 178,551.12/x
  3. Step 3: Cross multiply
    321,800.16x = 444,062.88 × 178,551.12
  4. Step 4: Simplify right side
    321,800.16x = 79,287,924,574.43
  5. Step 5: Solve for x
    x = 79,287,924,574.43/321,800.16
  6. Step 6: Final answer
    x = 246,388.70

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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.