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Finding the Fourth Proportional to 363,424.20, 545,136.30 and 205,960.20

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Solution

The fourth proportional to 363,424.20, 545,136.30 and 205,960.20 is: 308,940.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,424.20 : 545,136.30 = 205,960.20 : x
  2. Step 2: Convert to fraction form
    363,424.20/545,136.30 = 205,960.20/x
  3. Step 3: Cross multiply
    363,424.20x = 545,136.30 × 205,960.20
  4. Step 4: Simplify right side
    363,424.20x = 112,276,381,375.26
  5. Step 5: Solve for x
    x = 112,276,381,375.26/363,424.20
  6. Step 6: Final answer
    x = 308,940.30

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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.