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Finding the Fourth Proportional to 389,757.46, 584,673.36 and 109,273.90

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Solution

The fourth proportional to 389,757.46, 584,673.36 and 109,273.90 is: 163,921.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,757.46 : 584,673.36 = 109,273.90 : x
  2. Step 2: Convert to fraction form
    389,757.46/584,673.36 = 109,273.90/x
  3. Step 3: Cross multiply
    389,757.46x = 584,673.36 × 109,273.90
  4. Step 4: Simplify right side
    389,757.46x = 63,889,538,273.30
  5. Step 5: Solve for x
    x = 63,889,538,273.30/389,757.46
  6. Step 6: Final answer
    x = 163,921.27

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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.