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Finding the Fourth Proportional to 263,136.20, 363,124.50 and 143,904.20

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Solution

The fourth proportional to 263,136.20, 363,124.50 and 143,904.20 is: 198,585.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,136.20 : 363,124.50 = 143,904.20 : x
  2. Step 2: Convert to fraction form
    263,136.20/363,124.50 = 143,904.20/x
  3. Step 3: Cross multiply
    263,136.20x = 363,124.50 × 143,904.20
  4. Step 4: Simplify right side
    263,136.20x = 52,255,140,672.90
  5. Step 5: Solve for x
    x = 52,255,140,672.90/263,136.20
  6. Step 6: Final answer
    x = 198,585.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.