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Finding the Fourth Proportional to 129,296.40, 193,944.24 and 40,550.40

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Solution

The fourth proportional to 129,296.40, 193,944.24 and 40,550.40 is: 60,825.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,296.40 : 193,944.24 = 40,550.40 : x
  2. Step 2: Convert to fraction form
    129,296.40/193,944.24 = 40,550.40/x
  3. Step 3: Cross multiply
    129,296.40x = 193,944.24 × 40,550.40
  4. Step 4: Simplify right side
    129,296.40x = 7,864,516,509.70
  5. Step 5: Solve for x
    x = 7,864,516,509.70/129,296.40
  6. Step 6: Final answer
    x = 60,825.49

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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.