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Finding the Fourth Proportional to 270,841.32, 406,261.71 and 81,301.59

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Solution

The fourth proportional to 270,841.32, 406,261.71 and 81,301.59 is: 121,952.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,841.32 : 406,261.71 = 81,301.59 : x
  2. Step 2: Convert to fraction form
    270,841.32/406,261.71 = 81,301.59/x
  3. Step 3: Cross multiply
    270,841.32x = 406,261.71 × 81,301.59
  4. Step 4: Simplify right side
    270,841.32x = 33,029,722,979.12
  5. Step 5: Solve for x
    x = 33,029,722,979.12/270,841.32
  6. Step 6: Final answer
    x = 121,952.30

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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.