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Finding the Fourth Proportional to 180,737.40, 270,911.70 and 68,374.20

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Solution

The fourth proportional to 180,737.40, 270,911.70 and 68,374.20 is: 102,487.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,737.40 : 270,911.70 = 68,374.20 : x
  2. Step 2: Convert to fraction form
    180,737.40/270,911.70 = 68,374.20/x
  3. Step 3: Cross multiply
    180,737.40x = 270,911.70 × 68,374.20
  4. Step 4: Simplify right side
    180,737.40x = 18,523,370,758.14
  5. Step 5: Solve for x
    x = 18,523,370,758.14/180,737.40
  6. Step 6: Final answer
    x = 102,487.76

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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.