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Finding the Fourth Proportional to 445,016.72, 667,566 and 145,498.88

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Solution

The fourth proportional to 445,016.72, 667,566 and 145,498.88 is: 218,261.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,016.72 : 667,566 = 145,498.88 : x
  2. Step 2: Convert to fraction form
    445,016.72/667,566 = 145,498.88/x
  3. Step 3: Cross multiply
    445,016.72x = 667,566 × 145,498.88
  4. Step 4: Simplify right side
    445,016.72x = 97,130,105,326.08
  5. Step 5: Solve for x
    x = 97,130,105,326.08/445,016.72
  6. Step 6: Final answer
    x = 218,261.70

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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.