Home / 215,971.48-323,954.88-73,815.40

Finding the Fourth Proportional to 215,971.48, 323,954.88 and 73,815.40

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Solution

The fourth proportional to 215,971.48, 323,954.88 and 73,815.40 is: 110,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,971.48 : 323,954.88 = 73,815.40 : x
  2. Step 2: Convert to fraction form
    215,971.48/323,954.88 = 73,815.40/x
  3. Step 3: Cross multiply
    215,971.48x = 323,954.88 × 73,815.40
  4. Step 4: Simplify right side
    215,971.48x = 23,912,859,049.15
  5. Step 5: Solve for x
    x = 23,912,859,049.15/215,971.48
  6. Step 6: Final answer
    x = 110,722.30

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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.