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Finding the Fourth Proportional to 240,546.54, 360,713.10 and 128,205.78

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Solution

The fourth proportional to 240,546.54, 360,713.10 and 128,205.78 is: 192,251.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,546.54 : 360,713.10 = 128,205.78 : x
  2. Step 2: Convert to fraction form
    240,546.54/360,713.10 = 128,205.78/x
  3. Step 3: Cross multiply
    240,546.54x = 360,713.10 × 128,205.78
  4. Step 4: Simplify right side
    240,546.54x = 46,245,504,341.72
  5. Step 5: Solve for x
    x = 46,245,504,341.72/240,546.54
  6. Step 6: Final answer
    x = 192,251.80

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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.