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Finding the Fourth Proportional to 398,600.17, 597,902.42 and 118,119.85

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Solution

The fourth proportional to 398,600.17, 597,902.42 and 118,119.85 is: 177,180.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,600.17 : 597,902.42 = 118,119.85 : x
  2. Step 2: Convert to fraction form
    398,600.17/597,902.42 = 118,119.85/x
  3. Step 3: Cross multiply
    398,600.17x = 597,902.42 × 118,119.85
  4. Step 4: Simplify right side
    398,600.17x = 70,624,144,165.04
  5. Step 5: Solve for x
    x = 70,624,144,165.04/398,600.17
  6. Step 6: Final answer
    x = 177,180.42

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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.