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Finding the Fourth Proportional to 290,536.84, 400,013.92 and 247,924.36

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Solution

The fourth proportional to 290,536.84, 400,013.92 and 247,924.36 is: 341,344.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,536.84 : 400,013.92 = 247,924.36 : x
  2. Step 2: Convert to fraction form
    290,536.84/400,013.92 = 247,924.36/x
  3. Step 3: Cross multiply
    290,536.84x = 400,013.92 × 247,924.36
  4. Step 4: Simplify right side
    290,536.84x = 99,173,195,107.09
  5. Step 5: Solve for x
    x = 99,173,195,107.09/290,536.84
  6. Step 6: Final answer
    x = 341,344.65

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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.