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Finding the Fourth Proportional to 445,353.15, 667,927.28 and 265,489.38

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Solution

The fourth proportional to 445,353.15, 667,927.28 and 265,489.38 is: 398,173.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,353.15 : 667,927.28 = 265,489.38 : x
  2. Step 2: Convert to fraction form
    445,353.15/667,927.28 = 265,489.38/x
  3. Step 3: Cross multiply
    445,353.15x = 667,927.28 × 265,489.38
  4. Step 4: Simplify right side
    445,353.15x = 177,327,600,116.01
  5. Step 5: Solve for x
    x = 177,327,600,116.01/445,353.15
  6. Step 6: Final answer
    x = 398,173.00

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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.