Home / 220,972.65-304,942.28-120,370.65

Finding the Fourth Proportional to 220,972.65, 304,942.28 and 120,370.65

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Solution

The fourth proportional to 220,972.65, 304,942.28 and 120,370.65 is: 166,111.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,972.65 : 304,942.28 = 120,370.65 : x
  2. Step 2: Convert to fraction form
    220,972.65/304,942.28 = 120,370.65/x
  3. Step 3: Cross multiply
    220,972.65x = 304,942.28 × 120,370.65
  4. Step 4: Simplify right side
    220,972.65x = 36,706,100,456.08
  5. Step 5: Solve for x
    x = 36,706,100,456.08/220,972.65
  6. Step 6: Final answer
    x = 166,111.51

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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.