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Finding the Fourth Proportional to 180,447.80, 270,527.52 and 85,630.28

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Solution

The fourth proportional to 180,447.80, 270,527.52 and 85,630.28 is: 128,377.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,447.80 : 270,527.52 = 85,630.28 : x
  2. Step 2: Convert to fraction form
    180,447.80/270,527.52 = 85,630.28/x
  3. Step 3: Cross multiply
    180,447.80x = 270,527.52 × 85,630.28
  4. Step 4: Simplify right side
    180,447.80x = 23,165,347,285.31
  5. Step 5: Solve for x
    x = 23,165,347,285.31/180,447.80
  6. Step 6: Final answer
    x = 128,377.00

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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.