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Finding the Fourth Proportional to 288,757.80, 433,169.10 and 89,076.60

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Solution

The fourth proportional to 288,757.80, 433,169.10 and 89,076.60 is: 133,624.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,757.80 : 433,169.10 = 89,076.60 : x
  2. Step 2: Convert to fraction form
    288,757.80/433,169.10 = 89,076.60/x
  3. Step 3: Cross multiply
    288,757.80x = 433,169.10 × 89,076.60
  4. Step 4: Simplify right side
    288,757.80x = 38,585,230,653.06
  5. Step 5: Solve for x
    x = 38,585,230,653.06/288,757.80
  6. Step 6: Final answer
    x = 133,624.89

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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.