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Finding the Fourth Proportional to 243,003.08, 364,502.38 and 76,791.08

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Solution

The fourth proportional to 243,003.08, 364,502.38 and 76,791.08 is: 115,185.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,003.08 : 364,502.38 = 76,791.08 : x
  2. Step 2: Convert to fraction form
    243,003.08/364,502.38 = 76,791.08/x
  3. Step 3: Cross multiply
    243,003.08x = 364,502.38 × 76,791.08
  4. Step 4: Simplify right side
    243,003.08x = 27,990,531,422.77
  5. Step 5: Solve for x
    x = 27,990,531,422.77/243,003.08
  6. Step 6: Final answer
    x = 115,185.91

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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.