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Finding the Fourth Proportional to 445,060.59, 667,695.89 and 145,540.00

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Solution

The fourth proportional to 445,060.59, 667,695.89 and 145,540.00 is: 218,344.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,060.59 : 667,695.89 = 145,540.00 : x
  2. Step 2: Convert to fraction form
    445,060.59/667,695.89 = 145,540.00/x
  3. Step 3: Cross multiply
    445,060.59x = 667,695.89 × 145,540.00
  4. Step 4: Simplify right side
    445,060.59x = 97,176,461,029.07
  5. Step 5: Solve for x
    x = 97,176,461,029.07/445,060.59
  6. Step 6: Final answer
    x = 218,344.34

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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.