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Finding the Fourth Proportional to 268,452.19, 402,680.71 and 81,463.69

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Solution

The fourth proportional to 268,452.19, 402,680.71 and 81,463.69 is: 122,196.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,452.19 : 402,680.71 = 81,463.69 : x
  2. Step 2: Convert to fraction form
    268,452.19/402,680.71 = 81,463.69/x
  3. Step 3: Cross multiply
    268,452.19x = 402,680.71 × 81,463.69
  4. Step 4: Simplify right side
    268,452.19x = 32,803,856,528.42
  5. Step 5: Solve for x
    x = 32,803,856,528.42/268,452.19
  6. Step 6: Final answer
    x = 122,196.27

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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.