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Finding the Fourth Proportional to 243,711.23, 335,573.83 and 213,326.51

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Solution

The fourth proportional to 243,711.23, 335,573.83 and 213,326.51 is: 293,736.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,711.23 : 335,573.83 = 213,326.51 : x
  2. Step 2: Convert to fraction form
    243,711.23/335,573.83 = 213,326.51/x
  3. Step 3: Cross multiply
    243,711.23x = 335,573.83 × 213,326.51
  4. Step 4: Simplify right side
    243,711.23x = 71,586,794,001.23
  5. Step 5: Solve for x
    x = 71,586,794,001.23/243,711.23
  6. Step 6: Final answer
    x = 293,736.13

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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.