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Finding the Fourth Proportional to 271,232.80, 406,842.80 and 74,240.80

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Solution

The fourth proportional to 271,232.80, 406,842.80 and 74,240.80 is: 111,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,232.80 : 406,842.80 = 74,240.80 : x
  2. Step 2: Convert to fraction form
    271,232.80/406,842.80 = 74,240.80/x
  3. Step 3: Cross multiply
    271,232.80x = 406,842.80 × 74,240.80
  4. Step 4: Simplify right side
    271,232.80x = 30,204,334,946.24
  5. Step 5: Solve for x
    x = 30,204,334,946.24/271,232.80
  6. Step 6: Final answer
    x = 111,359.45

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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.