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Finding the Fourth Proportional to 213,060.96, 319,734 and 88,401.96

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Solution

The fourth proportional to 213,060.96, 319,734 and 88,401.96 is: 132,662.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,060.96 : 319,734 = 88,401.96 : x
  2. Step 2: Convert to fraction form
    213,060.96/319,734 = 88,401.96/x
  3. Step 3: Cross multiply
    213,060.96x = 319,734 × 88,401.96
  4. Step 4: Simplify right side
    213,060.96x = 28,265,112,278.64
  5. Step 5: Solve for x
    x = 28,265,112,278.64/213,060.96
  6. Step 6: Final answer
    x = 132,662.09

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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.