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Finding the Fourth Proportional to 321,299.52, 443,441.16 and 185,308.08

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Solution

The fourth proportional to 321,299.52, 443,441.16 and 185,308.08 is: 255,752.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,299.52 : 443,441.16 = 185,308.08 : x
  2. Step 2: Convert to fraction form
    321,299.52/443,441.16 = 185,308.08/x
  3. Step 3: Cross multiply
    321,299.52x = 443,441.16 × 185,308.08
  4. Step 4: Simplify right side
    321,299.52x = 82,173,229,952.57
  5. Step 5: Solve for x
    x = 82,173,229,952.57/321,299.52
  6. Step 6: Final answer
    x = 255,752.73

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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.