Home / 310,531.26-428,504.86-179,686.29

Finding the Fourth Proportional to 310,531.26, 428,504.86 and 179,686.29

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Solution

The fourth proportional to 310,531.26, 428,504.86 and 179,686.29 is: 247,950.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,531.26 : 428,504.86 = 179,686.29 : x
  2. Step 2: Convert to fraction form
    310,531.26/428,504.86 = 179,686.29/x
  3. Step 3: Cross multiply
    310,531.26x = 428,504.86 × 179,686.29
  4. Step 4: Simplify right side
    310,531.26x = 76,996,449,565.21
  5. Step 5: Solve for x
    x = 76,996,449,565.21/310,531.26
  6. Step 6: Final answer
    x = 247,950.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.