Home / 321,209.54-443,265.05-200,342.25

Finding the Fourth Proportional to 321,209.54, 443,265.05 and 200,342.25

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Solution

The fourth proportional to 321,209.54, 443,265.05 and 200,342.25 is: 276,469.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,209.54 : 443,265.05 = 200,342.25 : x
  2. Step 2: Convert to fraction form
    321,209.54/443,265.05 = 200,342.25/x
  3. Step 3: Cross multiply
    321,209.54x = 443,265.05 × 200,342.25
  4. Step 4: Simplify right side
    321,209.54x = 88,804,716,461.65
  5. Step 5: Solve for x
    x = 88,804,716,461.65/321,209.54
  6. Step 6: Final answer
    x = 276,469.74

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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.