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Finding the Fourth Proportional to 238,252.48, 328,788.88 and 137,650.56

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Solution

The fourth proportional to 238,252.48, 328,788.88 and 137,650.56 is: 189,958.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,252.48 : 328,788.88 = 137,650.56 : x
  2. Step 2: Convert to fraction form
    238,252.48/328,788.88 = 137,650.56/x
  3. Step 3: Cross multiply
    238,252.48x = 328,788.88 × 137,650.56
  4. Step 4: Simplify right side
    238,252.48x = 45,257,973,453.77
  5. Step 5: Solve for x
    x = 45,257,973,453.77/238,252.48
  6. Step 6: Final answer
    x = 189,958.04

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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.