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Finding the Fourth Proportional to 271,019.76, 374,034.96 and 156,302.88

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Solution

The fourth proportional to 271,019.76, 374,034.96 and 156,302.88 is: 215,713.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,019.76 : 374,034.96 = 156,302.88 : x
  2. Step 2: Convert to fraction form
    271,019.76/374,034.96 = 156,302.88/x
  3. Step 3: Cross multiply
    271,019.76x = 374,034.96 × 156,302.88
  4. Step 4: Simplify right side
    271,019.76x = 58,462,741,468.68
  5. Step 5: Solve for x
    x = 58,462,741,468.68/271,019.76
  6. Step 6: Final answer
    x = 215,713.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.