Home / 263,301.17-394,876.35-85,823.69

Finding the Fourth Proportional to 263,301.17, 394,876.35 and 85,823.69

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Solution

The fourth proportional to 263,301.17, 394,876.35 and 85,823.69 is: 128,710.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,301.17 : 394,876.35 = 85,823.69 : x
  2. Step 2: Convert to fraction form
    263,301.17/394,876.35 = 85,823.69/x
  3. Step 3: Cross multiply
    263,301.17x = 394,876.35 × 85,823.69
  4. Step 4: Simplify right side
    263,301.17x = 33,889,743,476.35
  5. Step 5: Solve for x
    x = 33,889,743,476.35/263,301.17
  6. Step 6: Final answer
    x = 128,710.95

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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.