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Finding the Fourth Proportional to 180,010.80, 270,016.20 and 145,018.80

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Solution

The fourth proportional to 180,010.80, 270,016.20 and 145,018.80 is: 217,528.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,010.80 : 270,016.20 = 145,018.80 : x
  2. Step 2: Convert to fraction form
    180,010.80/270,016.20 = 145,018.80/x
  3. Step 3: Cross multiply
    180,010.80x = 270,016.20 × 145,018.80
  4. Step 4: Simplify right side
    180,010.80x = 39,157,425,304.56
  5. Step 5: Solve for x
    x = 39,157,425,304.56/180,010.80
  6. Step 6: Final answer
    x = 217,528.20

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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.