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Finding the Fourth Proportional to 223,228.80, 334,843.20 and 189,403.20

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Solution

The fourth proportional to 223,228.80, 334,843.20 and 189,403.20 is: 284,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,228.80 : 334,843.20 = 189,403.20 : x
  2. Step 2: Convert to fraction form
    223,228.80/334,843.20 = 189,403.20/x
  3. Step 3: Cross multiply
    223,228.80x = 334,843.20 × 189,403.20
  4. Step 4: Simplify right side
    223,228.80x = 63,420,373,578.24
  5. Step 5: Solve for x
    x = 63,420,373,578.24/223,228.80
  6. Step 6: Final answer
    x = 284,104.80

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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.