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Finding the Fourth Proportional to 542,915.75, 814,379.88 and 163,839.75

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Solution

The fourth proportional to 542,915.75, 814,379.88 and 163,839.75 is: 245,761.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,915.75 : 814,379.88 = 163,839.75 : x
  2. Step 2: Convert to fraction form
    542,915.75/814,379.88 = 163,839.75/x
  3. Step 3: Cross multiply
    542,915.75x = 814,379.88 × 163,839.75
  4. Step 4: Simplify right side
    542,915.75x = 133,427,795,944.23
  5. Step 5: Solve for x
    x = 133,427,795,944.23/542,915.75
  6. Step 6: Final answer
    x = 245,761.51

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1.5x scale

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.