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Finding the Fourth Proportional to 271,275.20, 406,977.60 and 130,918.40

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Solution

The fourth proportional to 271,275.20, 406,977.60 and 130,918.40 is: 196,408.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,275.20 : 406,977.60 = 130,918.40 : x
  2. Step 2: Convert to fraction form
    271,275.20/406,977.60 = 130,918.40/x
  3. Step 3: Cross multiply
    271,275.20x = 406,977.60 × 130,918.40
  4. Step 4: Simplify right side
    271,275.20x = 53,280,856,227.84
  5. Step 5: Solve for x
    x = 53,280,856,227.84/271,275.20
  6. Step 6: Final answer
    x = 196,408.87

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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.