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Finding the Fourth Proportional to 192,677.70, 289,002.15 and 80,328.90

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Solution

The fourth proportional to 192,677.70, 289,002.15 and 80,328.90 is: 120,487.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,677.70 : 289,002.15 = 80,328.90 : x
  2. Step 2: Convert to fraction form
    192,677.70/289,002.15 = 80,328.90/x
  3. Step 3: Cross multiply
    192,677.70x = 289,002.15 × 80,328.90
  4. Step 4: Simplify right side
    192,677.70x = 23,215,224,807.14
  5. Step 5: Solve for x
    x = 23,215,224,807.14/192,677.70
  6. Step 6: Final answer
    x = 120,487.35

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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.