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Finding the Fourth Proportional to 271,089.47, 406,550.13 and 217,655.60

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Solution

The fourth proportional to 271,089.47, 406,550.13 and 217,655.60 is: 326,415.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,089.47 : 406,550.13 = 217,655.60 : x
  2. Step 2: Convert to fraction form
    271,089.47/406,550.13 = 217,655.60/x
  3. Step 3: Cross multiply
    271,089.47x = 406,550.13 × 217,655.60
  4. Step 4: Simplify right side
    271,089.47x = 88,487,910,442.48
  5. Step 5: Solve for x
    x = 88,487,910,442.48/271,089.47
  6. Step 6: Final answer
    x = 326,415.90

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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.