Home / 268,915.13-403,374.99-76,789.06

Finding the Fourth Proportional to 268,915.13, 403,374.99 and 76,789.06

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Solution

The fourth proportional to 268,915.13, 403,374.99 and 76,789.06 is: 115,184.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,915.13 : 403,374.99 = 76,789.06 : x
  2. Step 2: Convert to fraction form
    268,915.13/403,374.99 = 76,789.06/x
  3. Step 3: Cross multiply
    268,915.13x = 403,374.99 × 76,789.06
  4. Step 4: Simplify right side
    268,915.13x = 30,974,785,301.17
  5. Step 5: Solve for x
    x = 30,974,785,301.17/268,915.13
  6. Step 6: Final answer
    x = 115,184.24

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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.