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Finding the Fourth Proportional to 445,334.56, 667,859.28 and 145,733.92

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Solution

The fourth proportional to 445,334.56, 667,859.28 and 145,733.92 is: 218,554.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,334.56 : 667,859.28 = 145,733.92 : x
  2. Step 2: Convert to fraction form
    445,334.56/667,859.28 = 145,733.92/x
  3. Step 3: Cross multiply
    445,334.56x = 667,859.28 × 145,733.92
  4. Step 4: Simplify right side
    445,334.56x = 97,329,750,882.78
  5. Step 5: Solve for x
    x = 97,329,750,882.78/445,334.56
  6. Step 6: Final answer
    x = 218,554.23

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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.