Home / 220,875.12-304,806.24-120,273.12

Finding the Fourth Proportional to 220,875.12, 304,806.24 and 120,273.12

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Solution

The fourth proportional to 220,875.12, 304,806.24 and 120,273.12 is: 165,976.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,875.12 : 304,806.24 = 120,273.12 : x
  2. Step 2: Convert to fraction form
    220,875.12/304,806.24 = 120,273.12/x
  3. Step 3: Cross multiply
    220,875.12x = 304,806.24 × 120,273.12
  4. Step 4: Simplify right side
    220,875.12x = 36,659,997,480.27
  5. Step 5: Solve for x
    x = 36,659,997,480.27/220,875.12
  6. Step 6: Final answer
    x = 165,976.13

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1.5x scale

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.