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Finding the Fourth Proportional to 398,283.76, 597,674.78 and 161,626.45

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Solution

The fourth proportional to 398,283.76, 597,674.78 and 161,626.45 is: 242,540.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,283.76 : 597,674.78 = 161,626.45 : x
  2. Step 2: Convert to fraction form
    398,283.76/597,674.78 = 161,626.45/x
  3. Step 3: Cross multiply
    398,283.76x = 597,674.78 × 161,626.45
  4. Step 4: Simplify right side
    398,283.76x = 96,600,052,945.93
  5. Step 5: Solve for x
    x = 96,600,052,945.93/398,283.76
  6. Step 6: Final answer
    x = 242,540.78

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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.