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Finding the Fourth Proportional to 271,215.39, 406,674.05 and 215,412.87

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Solution

The fourth proportional to 271,215.39, 406,674.05 and 215,412.87 is: 323,000.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,215.39 : 406,674.05 = 215,412.87 : x
  2. Step 2: Convert to fraction form
    271,215.39/406,674.05 = 215,412.87/x
  3. Step 3: Cross multiply
    271,215.39x = 406,674.05 × 215,412.87
  4. Step 4: Simplify right side
    271,215.39x = 87,602,823,187.96
  5. Step 5: Solve for x
    x = 87,602,823,187.96/271,215.39
  6. Step 6: Final answer
    x = 323,000.93

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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.