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Finding the Fourth Proportional to 308,977.80, 462,482.55 and 220,404.30

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Solution

The fourth proportional to 308,977.80, 462,482.55 and 220,404.30 is: 329,904.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,977.80 : 462,482.55 = 220,404.30 : x
  2. Step 2: Convert to fraction form
    308,977.80/462,482.55 = 220,404.30/x
  3. Step 3: Cross multiply
    308,977.80x = 462,482.55 × 220,404.30
  4. Step 4: Simplify right side
    308,977.80x = 101,933,142,694.97
  5. Step 5: Solve for x
    x = 101,933,142,694.97/308,977.80
  6. Step 6: Final answer
    x = 329,904.42

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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.