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Finding the Fourth Proportional to 270,761.81, 406,205.00 and 90,871.10

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Solution

The fourth proportional to 270,761.81, 406,205.00 and 90,871.10 is: 136,327.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,761.81 : 406,205.00 = 90,871.10 : x
  2. Step 2: Convert to fraction form
    270,761.81/406,205.00 = 90,871.10/x
  3. Step 3: Cross multiply
    270,761.81x = 406,205.00 × 90,871.10
  4. Step 4: Simplify right side
    270,761.81x = 36,912,294,721.14
  5. Step 5: Solve for x
    x = 36,912,294,721.14/270,761.81
  6. Step 6: Final answer
    x = 136,327.55

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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.