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Finding the Fourth Proportional to 165,632.80, 247,930.80 and 130,381.60

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Solution

The fourth proportional to 165,632.80, 247,930.80 and 130,381.60 is: 195,164.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,632.80 : 247,930.80 = 130,381.60 : x
  2. Step 2: Convert to fraction form
    165,632.80/247,930.80 = 130,381.60/x
  3. Step 3: Cross multiply
    165,632.80x = 247,930.80 × 130,381.60
  4. Step 4: Simplify right side
    165,632.80x = 32,325,614,393.28
  5. Step 5: Solve for x
    x = 32,325,614,393.28/165,632.80
  6. Step 6: Final answer
    x = 195,164.33

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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.