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Finding the Fourth Proportional to 363,994.20, 545,991.30 and 206,530.20

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Solution

The fourth proportional to 363,994.20, 545,991.30 and 206,530.20 is: 309,795.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,994.20 : 545,991.30 = 206,530.20 : x
  2. Step 2: Convert to fraction form
    363,994.20/545,991.30 = 206,530.20/x
  3. Step 3: Cross multiply
    363,994.20x = 545,991.30 × 206,530.20
  4. Step 4: Simplify right side
    363,994.20x = 112,763,692,387.26
  5. Step 5: Solve for x
    x = 112,763,692,387.26/363,994.20
  6. Step 6: Final answer
    x = 309,795.30

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Similar ratio
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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.