Home / 268,979.76-403,522.74-79,443.36

Finding the Fourth Proportional to 268,979.76, 403,522.74 and 79,443.36

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Solution

The fourth proportional to 268,979.76, 403,522.74 and 79,443.36 is: 119,180.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,979.76 : 403,522.74 = 79,443.36 : x
  2. Step 2: Convert to fraction form
    268,979.76/403,522.74 = 79,443.36/x
  3. Step 3: Cross multiply
    268,979.76x = 403,522.74 × 79,443.36
  4. Step 4: Simplify right side
    268,979.76x = 32,057,202,302.01
  5. Step 5: Solve for x
    x = 32,057,202,302.01/268,979.76
  6. Step 6: Final answer
    x = 119,180.72

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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.