Home / 268,836.37-403,255.68-108,915.40

Finding the Fourth Proportional to 268,836.37, 403,255.68 and 108,915.40

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Solution

The fourth proportional to 268,836.37, 403,255.68 and 108,915.40 is: 163,373.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,836.37 : 403,255.68 = 108,915.40 : x
  2. Step 2: Convert to fraction form
    268,836.37/403,255.68 = 108,915.40/x
  3. Step 3: Cross multiply
    268,836.37x = 403,255.68 × 108,915.40
  4. Step 4: Simplify right side
    268,836.37x = 43,920,753,689.47
  5. Step 5: Solve for x
    x = 43,920,753,689.47/268,836.37
  6. Step 6: Final answer
    x = 163,373.56

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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.