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Finding the Fourth Proportional to 398,399.40, 597,549.36 and 161,514.48

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Solution

The fourth proportional to 398,399.40, 597,549.36 and 161,514.48 is: 242,251.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,399.40 : 597,549.36 = 161,514.48 : x
  2. Step 2: Convert to fraction form
    398,399.40/597,549.36 = 161,514.48/x
  3. Step 3: Cross multiply
    398,399.40x = 597,549.36 × 161,514.48
  4. Step 4: Simplify right side
    398,399.40x = 96,512,874,154.73
  5. Step 5: Solve for x
    x = 96,512,874,154.73/398,399.40
  6. Step 6: Final answer
    x = 242,251.55

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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.