Home / 220,828.30-304,743.10-120,226.30

Finding the Fourth Proportional to 220,828.30, 304,743.10 and 120,226.30

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Solution

The fourth proportional to 220,828.30, 304,743.10 and 120,226.30 is: 165,912.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,828.30 : 304,743.10 = 120,226.30 : x
  2. Step 2: Convert to fraction form
    220,828.30/304,743.10 = 120,226.30/x
  3. Step 3: Cross multiply
    220,828.30x = 304,743.10 × 120,226.30
  4. Step 4: Simplify right side
    220,828.30x = 36,638,135,363.53
  5. Step 5: Solve for x
    x = 36,638,135,363.53/220,828.30
  6. Step 6: Final answer
    x = 165,912.32

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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.