Home / 220,405.90-331,313.55-204,805.30

Finding the Fourth Proportional to 220,405.90, 331,313.55 and 204,805.30

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Solution

The fourth proportional to 220,405.90, 331,313.55 and 204,805.30 is: 307,862.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,405.90 : 331,313.55 = 204,805.30 : x
  2. Step 2: Convert to fraction form
    220,405.90/331,313.55 = 204,805.30/x
  3. Step 3: Cross multiply
    220,405.90x = 331,313.55 × 204,805.30
  4. Step 4: Simplify right side
    220,405.90x = 67,854,771,001.82
  5. Step 5: Solve for x
    x = 67,854,771,001.82/220,405.90
  6. Step 6: Final answer
    x = 307,862.77

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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.