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Finding the Fourth Proportional to 179,449.40, 269,465.70 and 129,877.40

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Solution

The fourth proportional to 179,449.40, 269,465.70 and 129,877.40 is: 195,027.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,449.40 : 269,465.70 = 129,877.40 : x
  2. Step 2: Convert to fraction form
    179,449.40/269,465.70 = 129,877.40/x
  3. Step 3: Cross multiply
    179,449.40x = 269,465.70 × 129,877.40
  4. Step 4: Simplify right side
    179,449.40x = 34,997,504,505.18
  5. Step 5: Solve for x
    x = 34,997,504,505.18/179,449.40
  6. Step 6: Final answer
    x = 195,027.15

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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.