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Finding the Fourth Proportional to 398,662.80, 597,979.80 and 161,998.80

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Solution

The fourth proportional to 398,662.80, 597,979.80 and 161,998.80 is: 242,992.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,662.80 : 597,979.80 = 161,998.80 : x
  2. Step 2: Convert to fraction form
    398,662.80/597,979.80 = 161,998.80/x
  3. Step 3: Cross multiply
    398,662.80x = 597,979.80 × 161,998.80
  4. Step 4: Simplify right side
    398,662.80x = 96,872,010,024.24
  5. Step 5: Solve for x
    x = 96,872,010,024.24/398,662.80
  6. Step 6: Final answer
    x = 242,992.35

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1.5x scale

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.