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Finding the Fourth Proportional to 322,455.20, 483,452.40 and 144,816.80

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Solution

The fourth proportional to 322,455.20, 483,452.40 and 144,816.80 is: 217,121.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,455.20 : 483,452.40 = 144,816.80 : x
  2. Step 2: Convert to fraction form
    322,455.20/483,452.40 = 144,816.80/x
  3. Step 3: Cross multiply
    322,455.20x = 483,452.40 × 144,816.80
  4. Step 4: Simplify right side
    322,455.20x = 70,012,029,520.32
  5. Step 5: Solve for x
    x = 70,012,029,520.32/322,455.20
  6. Step 6: Final answer
    x = 217,121.73

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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.