Home / 261,284.94-391,833.27-90,460.26

Finding the Fourth Proportional to 261,284.94, 391,833.27 and 90,460.26

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Solution

The fourth proportional to 261,284.94, 391,833.27 and 90,460.26 is: 135,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,284.94 : 391,833.27 = 90,460.26 : x
  2. Step 2: Convert to fraction form
    261,284.94/391,833.27 = 90,460.26/x
  3. Step 3: Cross multiply
    261,284.94x = 391,833.27 × 90,460.26
  4. Step 4: Simplify right side
    261,284.94x = 35,445,339,480.85
  5. Step 5: Solve for x
    x = 35,445,339,480.85/261,284.94
  6. Step 6: Final answer
    x = 135,657.80

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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.