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Finding the Fourth Proportional to 534,218.20, 800,646.90 and 218,318.20

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Solution

The fourth proportional to 534,218.20, 800,646.90 and 218,318.20 is: 327,199.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,218.20 : 800,646.90 = 218,318.20 : x
  2. Step 2: Convert to fraction form
    534,218.20/800,646.90 = 218,318.20/x
  3. Step 3: Cross multiply
    534,218.20x = 800,646.90 × 218,318.20
  4. Step 4: Simplify right side
    534,218.20x = 174,795,790,043.58
  5. Step 5: Solve for x
    x = 174,795,790,043.58/534,218.20
  6. Step 6: Final answer
    x = 327,199.24

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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.