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Finding the Fourth Proportional to 180,348.72, 270,585.24 and 80,577.78

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Solution

The fourth proportional to 180,348.72, 270,585.24 and 80,577.78 is: 120,894.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,348.72 : 270,585.24 = 80,577.78 : x
  2. Step 2: Convert to fraction form
    180,348.72/270,585.24 = 80,577.78/x
  3. Step 3: Cross multiply
    180,348.72x = 270,585.24 × 80,577.78
  4. Step 4: Simplify right side
    180,348.72x = 21,803,157,939.97
  5. Step 5: Solve for x
    x = 21,803,157,939.97/180,348.72
  6. Step 6: Final answer
    x = 120,894.44

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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.