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Finding the Fourth Proportional to 271,718.38, 407,658.57 and 129,670.30

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Solution

The fourth proportional to 271,718.38, 407,658.57 and 129,670.30 is: 194,544.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,718.38 : 407,658.57 = 129,670.30 : x
  2. Step 2: Convert to fraction form
    271,718.38/407,658.57 = 129,670.30/x
  3. Step 3: Cross multiply
    271,718.38x = 407,658.57 × 129,670.30
  4. Step 4: Simplify right side
    271,718.38x = 52,861,209,069.47
  5. Step 5: Solve for x
    x = 52,861,209,069.47/271,718.38
  6. Step 6: Final answer
    x = 194,544.11

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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.