Home / 268,914.80-403,372.20-156,721.70

Finding the Fourth Proportional to 268,914.80, 403,372.20 and 156,721.70

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Solution

The fourth proportional to 268,914.80, 403,372.20 and 156,721.70 is: 235,082.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,914.80 : 403,372.20 = 156,721.70 : x
  2. Step 2: Convert to fraction form
    268,914.80/403,372.20 = 156,721.70/x
  3. Step 3: Cross multiply
    268,914.80x = 403,372.20 × 156,721.70
  4. Step 4: Simplify right side
    268,914.80x = 63,217,176,916.74
  5. Step 5: Solve for x
    x = 63,217,176,916.74/268,914.80
  6. Step 6: Final answer
    x = 235,082.55

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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.