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Finding the Fourth Proportional to 180,007.20, 270,010.80 and 55,348.20

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Solution

The fourth proportional to 180,007.20, 270,010.80 and 55,348.20 is: 83,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,007.20 : 270,010.80 = 55,348.20 : x
  2. Step 2: Convert to fraction form
    180,007.20/270,010.80 = 55,348.20/x
  3. Step 3: Cross multiply
    180,007.20x = 270,010.80 × 55,348.20
  4. Step 4: Simplify right side
    180,007.20x = 14,944,611,760.56
  5. Step 5: Solve for x
    x = 14,944,611,760.56/180,007.20
  6. Step 6: Final answer
    x = 83,022.30

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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.