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Finding the Fourth Proportional to 533,832.40, 800,359.80 and 218,126.80

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Solution

The fourth proportional to 533,832.40, 800,359.80 and 218,126.80 is: 327,031.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,832.40 : 800,359.80 = 218,126.80 : x
  2. Step 2: Convert to fraction form
    533,832.40/800,359.80 = 218,126.80/x
  3. Step 3: Cross multiply
    533,832.40x = 800,359.80 × 218,126.80
  4. Step 4: Simplify right side
    533,832.40x = 174,579,922,022.64
  5. Step 5: Solve for x
    x = 174,579,922,022.64/533,832.40
  6. Step 6: Final answer
    x = 327,031.33

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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.