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Finding the Fourth Proportional to 179,951.20, 269,602.80 and 86,250.40

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Solution

The fourth proportional to 179,951.20, 269,602.80 and 86,250.40 is: 129,220.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,951.20 : 269,602.80 = 86,250.40 : x
  2. Step 2: Convert to fraction form
    179,951.20/269,602.80 = 86,250.40/x
  3. Step 3: Cross multiply
    179,951.20x = 269,602.80 × 86,250.40
  4. Step 4: Simplify right side
    179,951.20x = 23,253,349,341.12
  5. Step 5: Solve for x
    x = 23,253,349,341.12/179,951.20
  6. Step 6: Final answer
    x = 129,220.31

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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.