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Finding the Fourth Proportional to 271,030.88, 406,604.54 and 81,475.49

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Solution

The fourth proportional to 271,030.88, 406,604.54 and 81,475.49 is: 122,230.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,030.88 : 406,604.54 = 81,475.49 : x
  2. Step 2: Convert to fraction form
    271,030.88/406,604.54 = 81,475.49/x
  3. Step 3: Cross multiply
    271,030.88x = 406,604.54 × 81,475.49
  4. Step 4: Simplify right side
    271,030.88x = 33,128,305,352.92
  5. Step 5: Solve for x
    x = 33,128,305,352.92/271,030.88
  6. Step 6: Final answer
    x = 122,230.74

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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.