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Finding the Fourth Proportional to 240,825.22, 361,133.12 and 128,480.38

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Solution

The fourth proportional to 240,825.22, 361,133.12 and 128,480.38 is: 192,664.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,825.22 : 361,133.12 = 128,480.38 : x
  2. Step 2: Convert to fraction form
    240,825.22/361,133.12 = 128,480.38/x
  3. Step 3: Cross multiply
    240,825.22x = 361,133.12 × 128,480.38
  4. Step 4: Simplify right side
    240,825.22x = 46,398,520,488.19
  5. Step 5: Solve for x
    x = 46,398,520,488.19/240,825.22
  6. Step 6: Final answer
    x = 192,664.71

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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.