Home / 263,327.18-395,031.72-85,792.82

Finding the Fourth Proportional to 263,327.18, 395,031.72 and 85,792.82

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Solution

The fourth proportional to 263,327.18, 395,031.72 and 85,792.82 is: 128,702.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,327.18 : 395,031.72 = 85,792.82 : x
  2. Step 2: Convert to fraction form
    263,327.18/395,031.72 = 85,792.82/x
  3. Step 3: Cross multiply
    263,327.18x = 395,031.72 × 85,792.82
  4. Step 4: Simplify right side
    263,327.18x = 33,890,885,248.25
  5. Step 5: Solve for x
    x = 33,890,885,248.25/263,327.18
  6. Step 6: Final answer
    x = 128,702.57

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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.