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Finding the Fourth Proportional to 298,360.96, 447,607.20 and 129,908.32

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Solution

The fourth proportional to 298,360.96, 447,607.20 and 129,908.32 is: 194,891.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,360.96 : 447,607.20 = 129,908.32 : x
  2. Step 2: Convert to fraction form
    298,360.96/447,607.20 = 129,908.32/x
  3. Step 3: Cross multiply
    298,360.96x = 447,607.20 × 129,908.32
  4. Step 4: Simplify right side
    298,360.96x = 58,147,899,371.90
  5. Step 5: Solve for x
    x = 58,147,899,371.90/298,360.96
  6. Step 6: Final answer
    x = 194,891.11

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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.