Home / 268,977.16-403,519.20-91,436.50

Finding the Fourth Proportional to 268,977.16, 403,519.20 and 91,436.50

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Solution

The fourth proportional to 268,977.16, 403,519.20 and 91,436.50 is: 137,172.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,977.16 : 403,519.20 = 91,436.50 : x
  2. Step 2: Convert to fraction form
    268,977.16/403,519.20 = 91,436.50/x
  3. Step 3: Cross multiply
    268,977.16x = 403,519.20 × 91,436.50
  4. Step 4: Simplify right side
    268,977.16x = 36,896,383,330.80
  5. Step 5: Solve for x
    x = 36,896,383,330.80/268,977.16
  6. Step 6: Final answer
    x = 137,172.92

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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.