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Finding the Fourth Proportional to 192,077.40, 288,116.10 and 103,503.90

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Solution

The fourth proportional to 192,077.40, 288,116.10 and 103,503.90 is: 155,255.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,077.40 : 288,116.10 = 103,503.90 : x
  2. Step 2: Convert to fraction form
    192,077.40/288,116.10 = 103,503.90/x
  3. Step 3: Cross multiply
    192,077.40x = 288,116.10 × 103,503.90
  4. Step 4: Simplify right side
    192,077.40x = 29,821,140,002.79
  5. Step 5: Solve for x
    x = 29,821,140,002.79/192,077.40
  6. Step 6: Final answer
    x = 155,255.85

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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.