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Finding the Fourth Proportional to 192,505.20, 288,757.80 and 109,561.20

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Solution

The fourth proportional to 192,505.20, 288,757.80 and 109,561.20 is: 164,341.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,505.20 : 288,757.80 = 109,561.20 : x
  2. Step 2: Convert to fraction form
    192,505.20/288,757.80 = 109,561.20/x
  3. Step 3: Cross multiply
    192,505.20x = 288,757.80 × 109,561.20
  4. Step 4: Simplify right side
    192,505.20x = 31,636,651,077.36
  5. Step 5: Solve for x
    x = 31,636,651,077.36/192,505.20
  6. Step 6: Final answer
    x = 164,341.80

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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.