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Finding the Fourth Proportional to 165,330.80, 247,558.80 and 130,047.20

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Solution

The fourth proportional to 165,330.80, 247,558.80 and 130,047.20 is: 194,726.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,330.80 : 247,558.80 = 130,047.20 : x
  2. Step 2: Convert to fraction form
    165,330.80/247,558.80 = 130,047.20/x
  3. Step 3: Cross multiply
    165,330.80x = 247,558.80 × 130,047.20
  4. Step 4: Simplify right side
    165,330.80x = 32,194,328,775.36
  5. Step 5: Solve for x
    x = 32,194,328,775.36/165,330.80
  6. Step 6: Final answer
    x = 194,726.75

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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.