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Finding the Fourth Proportional to 180,707.40, 270,866.70 and 68,344.20

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Solution

The fourth proportional to 180,707.40, 270,866.70 and 68,344.20 is: 102,442.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,707.40 : 270,866.70 = 68,344.20 : x
  2. Step 2: Convert to fraction form
    180,707.40/270,866.70 = 68,344.20/x
  3. Step 3: Cross multiply
    180,707.40x = 270,866.70 × 68,344.20
  4. Step 4: Simplify right side
    180,707.40x = 18,512,167,918.14
  5. Step 5: Solve for x
    x = 18,512,167,918.14/180,707.40
  6. Step 6: Final answer
    x = 102,442.78

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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.