Home / 268,930.50-371,225.62-211,419.78

Finding the Fourth Proportional to 268,930.50, 371,225.62 and 211,419.78

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Solution

The fourth proportional to 268,930.50, 371,225.62 and 211,419.78 is: 291,839.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,930.50 : 371,225.62 = 211,419.78 : x
  2. Step 2: Convert to fraction form
    268,930.50/371,225.62 = 211,419.78/x
  3. Step 3: Cross multiply
    268,930.50x = 371,225.62 × 211,419.78
  4. Step 4: Simplify right side
    268,930.50x = 78,484,438,910.76
  5. Step 5: Solve for x
    x = 78,484,438,910.76/268,930.50
  6. Step 6: Final answer
    x = 291,839.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.