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Finding the Fourth Proportional to 180,304.48, 270,589.60 and 85,534.96

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Solution

The fourth proportional to 180,304.48, 270,589.60 and 85,534.96 is: 128,365.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,304.48 : 270,589.60 = 85,534.96 : x
  2. Step 2: Convert to fraction form
    180,304.48/270,589.60 = 85,534.96/x
  3. Step 3: Cross multiply
    180,304.48x = 270,589.60 × 85,534.96
  4. Step 4: Simplify right side
    180,304.48x = 23,144,870,612.42
  5. Step 5: Solve for x
    x = 23,144,870,612.42/180,304.48
  6. Step 6: Final answer
    x = 128,365.48

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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.