Home / 268,837.61-403,257.54-108,916.65

Finding the Fourth Proportional to 268,837.61, 403,257.54 and 108,916.65

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Solution

The fourth proportional to 268,837.61, 403,257.54 and 108,916.65 is: 163,375.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,837.61 : 403,257.54 = 108,916.65 : x
  2. Step 2: Convert to fraction form
    268,837.61/403,257.54 = 108,916.65/x
  3. Step 3: Cross multiply
    268,837.61x = 403,257.54 × 108,916.65
  4. Step 4: Simplify right side
    268,837.61x = 43,921,460,344.04
  5. Step 5: Solve for x
    x = 43,921,460,344.04/268,837.61
  6. Step 6: Final answer
    x = 163,375.43

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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.