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Finding the Fourth Proportional to 322,200.80, 483,301.20 and 306,648.80

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Solution

The fourth proportional to 322,200.80, 483,301.20 and 306,648.80 is: 459,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,200.80 : 483,301.20 = 306,648.80 : x
  2. Step 2: Convert to fraction form
    322,200.80/483,301.20 = 306,648.80/x
  3. Step 3: Cross multiply
    322,200.80x = 483,301.20 × 306,648.80
  4. Step 4: Simplify right side
    322,200.80x = 148,203,733,018.56
  5. Step 5: Solve for x
    x = 148,203,733,018.56/322,200.80
  6. Step 6: Final answer
    x = 459,973.20

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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.