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Finding the Fourth Proportional to 270,875.52, 406,370.52 and 81,329.04

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Solution

The fourth proportional to 270,875.52, 406,370.52 and 81,329.04 is: 122,010.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,875.52 : 406,370.52 = 81,329.04 : x
  2. Step 2: Convert to fraction form
    270,875.52/406,370.52 = 81,329.04/x
  3. Step 3: Cross multiply
    270,875.52x = 406,370.52 × 81,329.04
  4. Step 4: Simplify right side
    270,875.52x = 33,049,724,275.90
  5. Step 5: Solve for x
    x = 33,049,724,275.90/270,875.52
  6. Step 6: Final answer
    x = 122,010.75

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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.