Home / 220,125.30-329,313.15-190,868.10

Finding the Fourth Proportional to 220,125.30, 329,313.15 and 190,868.10

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Solution

The fourth proportional to 220,125.30, 329,313.15 and 190,868.10 is: 285,543.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,125.30 : 329,313.15 = 190,868.10 : x
  2. Step 2: Convert to fraction form
    220,125.30/329,313.15 = 190,868.10/x
  3. Step 3: Cross multiply
    220,125.30x = 329,313.15 × 190,868.10
  4. Step 4: Simplify right side
    220,125.30x = 62,855,375,245.52
  5. Step 5: Solve for x
    x = 62,855,375,245.52/220,125.30
  6. Step 6: Final answer
    x = 285,543.62

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1.5x scale

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.