Home / 263,302.17-394,877.85-85,824.69

Finding the Fourth Proportional to 263,302.17, 394,877.85 and 85,824.69

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Solution

The fourth proportional to 263,302.17, 394,877.85 and 85,824.69 is: 128,712.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,302.17 : 394,877.85 = 85,824.69 : x
  2. Step 2: Convert to fraction form
    263,302.17/394,877.85 = 85,824.69/x
  3. Step 3: Cross multiply
    263,302.17x = 394,877.85 × 85,824.69
  4. Step 4: Simplify right side
    263,302.17x = 33,890,269,064.12
  5. Step 5: Solve for x
    x = 33,890,269,064.12/263,302.17
  6. Step 6: Final answer
    x = 128,712.46

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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.