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Finding the Fourth Proportional to 418,193.52, 576,979.92 and 236,876.64

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Solution

The fourth proportional to 418,193.52, 576,979.92 and 236,876.64 is: 326,817.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,193.52 : 576,979.92 = 236,876.64 : x
  2. Step 2: Convert to fraction form
    418,193.52/576,979.92 = 236,876.64/x
  3. Step 3: Cross multiply
    418,193.52x = 576,979.92 × 236,876.64
  4. Step 4: Simplify right side
    418,193.52x = 136,673,064,797.07
  5. Step 5: Solve for x
    x = 136,673,064,797.07/418,193.52
  6. Step 6: Final answer
    x = 326,817.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.