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Finding the Fourth Proportional to 660,358.52, 990,540.20 and 161,722.52

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Solution

The fourth proportional to 660,358.52, 990,540.20 and 161,722.52 is: 242,584.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,358.52 : 990,540.20 = 161,722.52 : x
  2. Step 2: Convert to fraction form
    660,358.52/990,540.20 = 161,722.52/x
  3. Step 3: Cross multiply
    660,358.52x = 990,540.20 × 161,722.52
  4. Step 4: Simplify right side
    660,358.52x = 160,192,657,305.30
  5. Step 5: Solve for x
    x = 160,192,657,305.30/660,358.52
  6. Step 6: Final answer
    x = 242,584.37

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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.