Home / 220,905.38-304,834.90-130,256.96

Finding the Fourth Proportional to 220,905.38, 304,834.90 and 130,256.96

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Solution

The fourth proportional to 220,905.38, 304,834.90 and 130,256.96 is: 179,746.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,905.38 : 304,834.90 = 130,256.96 : x
  2. Step 2: Convert to fraction form
    220,905.38/304,834.90 = 130,256.96/x
  3. Step 3: Cross multiply
    220,905.38x = 304,834.90 × 130,256.96
  4. Step 4: Simplify right side
    220,905.38x = 39,706,867,375.90
  5. Step 5: Solve for x
    x = 39,706,867,375.90/220,905.38
  6. Step 6: Final answer
    x = 179,746.04

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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.