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Finding the Fourth Proportional to 271,161.60, 406,627.20 and 130,963.20

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Solution

The fourth proportional to 271,161.60, 406,627.20 and 130,963.20 is: 196,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,161.60 : 406,627.20 = 130,963.20 : x
  2. Step 2: Convert to fraction form
    271,161.60/406,627.20 = 130,963.20/x
  3. Step 3: Cross multiply
    271,161.60x = 406,627.20 × 130,963.20
  4. Step 4: Simplify right side
    271,161.60x = 53,253,199,319.04
  5. Step 5: Solve for x
    x = 53,253,199,319.04/271,161.60
  6. Step 6: Final answer
    x = 196,389.16

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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.