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Finding the Fourth Proportional to 270,835.38, 406,252.65 and 81,295.56

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Solution

The fourth proportional to 270,835.38, 406,252.65 and 81,295.56 is: 121,943.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,835.38 : 406,252.65 = 81,295.56 : x
  2. Step 2: Convert to fraction form
    270,835.38/406,252.65 = 81,295.56/x
  3. Step 3: Cross multiply
    270,835.38x = 406,252.65 × 81,295.56
  4. Step 4: Simplify right side
    270,835.38x = 33,026,536,683.23
  5. Step 5: Solve for x
    x = 33,026,536,683.23/270,835.38
  6. Step 6: Final answer
    x = 121,943.21

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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.