Home / 445,279.20-667,776.72-145,679.16

Finding the Fourth Proportional to 445,279.20, 667,776.72 and 145,679.16

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Solution

The fourth proportional to 445,279.20, 667,776.72 and 145,679.16 is: 218,472.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,279.20 : 667,776.72 = 145,679.16 : x
  2. Step 2: Convert to fraction form
    445,279.20/667,776.72 = 145,679.16/x
  3. Step 3: Cross multiply
    445,279.20x = 667,776.72 × 145,679.16
  4. Step 4: Simplify right side
    445,279.20x = 97,281,151,637.16
  5. Step 5: Solve for x
    x = 97,281,151,637.16/445,279.20
  6. Step 6: Final answer
    x = 218,472.26

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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.