Home / 261,025.93-391,140.33-194,142.61

Finding the Fourth Proportional to 261,025.93, 391,140.33 and 194,142.61

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Solution

The fourth proportional to 261,025.93, 391,140.33 and 194,142.61 is: 290,917.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,025.93 : 391,140.33 = 194,142.61 : x
  2. Step 2: Convert to fraction form
    261,025.93/391,140.33 = 194,142.61/x
  3. Step 3: Cross multiply
    261,025.93x = 391,140.33 × 194,142.61
  4. Step 4: Simplify right side
    261,025.93x = 75,937,004,542.46
  5. Step 5: Solve for x
    x = 75,937,004,542.46/261,025.93
  6. Step 6: Final answer
    x = 290,917.48

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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.