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Finding the Fourth Proportional to 323,762.49, 485,527.10 and 136,788.57

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Solution

The fourth proportional to 323,762.49, 485,527.10 and 136,788.57 is: 205,133.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,762.49 : 485,527.10 = 136,788.57 : x
  2. Step 2: Convert to fraction form
    323,762.49/485,527.10 = 136,788.57/x
  3. Step 3: Cross multiply
    323,762.49x = 485,527.10 × 136,788.57
  4. Step 4: Simplify right side
    323,762.49x = 66,414,557,021.30
  5. Step 5: Solve for x
    x = 66,414,557,021.30/323,762.49
  6. Step 6: Final answer
    x = 205,133.57

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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.