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Finding the Fourth Proportional to 240,633.20, 360,949.80 and 147,321.20

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Solution

The fourth proportional to 240,633.20, 360,949.80 and 147,321.20 is: 220,981.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,633.20 : 360,949.80 = 147,321.20 : x
  2. Step 2: Convert to fraction form
    240,633.20/360,949.80 = 147,321.20/x
  3. Step 3: Cross multiply
    240,633.20x = 360,949.80 × 147,321.20
  4. Step 4: Simplify right side
    240,633.20x = 53,175,557,675.76
  5. Step 5: Solve for x
    x = 53,175,557,675.76/240,633.20
  6. Step 6: Final answer
    x = 220,981.80

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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.