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Finding the Fourth Proportional to 288,961.20, 433,441.80 and 200,314.80

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Solution

The fourth proportional to 288,961.20, 433,441.80 and 200,314.80 is: 300,472.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,961.20 : 433,441.80 = 200,314.80 : x
  2. Step 2: Convert to fraction form
    288,961.20/433,441.80 = 200,314.80/x
  3. Step 3: Cross multiply
    288,961.20x = 433,441.80 × 200,314.80
  4. Step 4: Simplify right side
    288,961.20x = 86,824,807,478.64
  5. Step 5: Solve for x
    x = 86,824,807,478.64/288,961.20
  6. Step 6: Final answer
    x = 300,472.20

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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.