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Finding the Fourth Proportional to 268,955.46, 403,316.52 and 91,414.80

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Solution

The fourth proportional to 268,955.46, 403,316.52 and 91,414.80 is: 137,082.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,955.46 : 403,316.52 = 91,414.80 : x
  2. Step 2: Convert to fraction form
    268,955.46/403,316.52 = 91,414.80/x
  3. Step 3: Cross multiply
    268,955.46x = 403,316.52 × 91,414.80
  4. Step 4: Simplify right side
    268,955.46x = 36,869,099,012.50
  5. Step 5: Solve for x
    x = 36,869,099,012.50/268,955.46
  6. Step 6: Final answer
    x = 137,082.55

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1.5x scale

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.