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Finding the Fourth Proportional to 271,353.60, 406,915.20 and 131,155.20

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Solution

The fourth proportional to 271,353.60, 406,915.20 and 131,155.20 is: 196,677.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,353.60 : 406,915.20 = 131,155.20 : x
  2. Step 2: Convert to fraction form
    271,353.60/406,915.20 = 131,155.20/x
  3. Step 3: Cross multiply
    271,353.60x = 406,915.20 × 131,155.20
  4. Step 4: Simplify right side
    271,353.60x = 53,369,044,439.04
  5. Step 5: Solve for x
    x = 53,369,044,439.04/271,353.60
  6. Step 6: Final answer
    x = 196,677.12

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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.