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Finding the Fourth Proportional to 215,352, 323,040.96 and 67,608

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Solution

The fourth proportional to 215,352, 323,040.96 and 67,608 is: 101,416.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,352 : 323,040.96 = 67,608 : x
  2. Step 2: Convert to fraction form
    215,352/323,040.96 = 67,608/x
  3. Step 3: Cross multiply
    215,352x = 323,040.96 × 67,608
  4. Step 4: Simplify right side
    215,352x = 21,840,153,223.68
  5. Step 5: Solve for x
    x = 21,840,153,223.68/215,352
  6. Step 6: Final answer
    x = 101,416.07

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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.