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Finding the Fourth Proportional to 297,221.80, 445,832.70 and 178,832.20

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Solution

The fourth proportional to 297,221.80, 445,832.70 and 178,832.20 is: 268,248.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,221.80 : 445,832.70 = 178,832.20 : x
  2. Step 2: Convert to fraction form
    297,221.80/445,832.70 = 178,832.20/x
  3. Step 3: Cross multiply
    297,221.80x = 445,832.70 × 178,832.20
  4. Step 4: Simplify right side
    297,221.80x = 79,729,242,572.94
  5. Step 5: Solve for x
    x = 79,729,242,572.94/297,221.80
  6. Step 6: Final answer
    x = 268,248.30

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1.5x scale

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.