Home / 260,937.15-391,405.73-136,261.95

Finding the Fourth Proportional to 260,937.15, 391,405.73 and 136,261.95

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Solution

The fourth proportional to 260,937.15, 391,405.73 and 136,261.95 is: 204,392.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,937.15 : 391,405.73 = 136,261.95 : x
  2. Step 2: Convert to fraction form
    260,937.15/391,405.73 = 136,261.95/x
  3. Step 3: Cross multiply
    260,937.15x = 391,405.73 × 136,261.95
  4. Step 4: Simplify right side
    260,937.15x = 53,333,707,329.66
  5. Step 5: Solve for x
    x = 53,333,707,329.66/260,937.15
  6. Step 6: Final answer
    x = 204,392.93

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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.