Home / 271,654.20-407,520.12-84,680.28

Finding the Fourth Proportional to 271,654.20, 407,520.12 and 84,680.28

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Solution

The fourth proportional to 271,654.20, 407,520.12 and 84,680.28 is: 127,032.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,654.20 : 407,520.12 = 84,680.28 : x
  2. Step 2: Convert to fraction form
    271,654.20/407,520.12 = 84,680.28/x
  3. Step 3: Cross multiply
    271,654.20x = 407,520.12 × 84,680.28
  4. Step 4: Simplify right side
    271,654.20x = 34,508,917,867.23
  5. Step 5: Solve for x
    x = 34,508,917,867.23/271,654.20
  6. Step 6: Final answer
    x = 127,032.52

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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.