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Finding the Fourth Proportional to 200,423.03, 300,662.15 and 67,341.31

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Solution

The fourth proportional to 200,423.03, 300,662.15 and 67,341.31 is: 101,021.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,423.03 : 300,662.15 = 67,341.31 : x
  2. Step 2: Convert to fraction form
    200,423.03/300,662.15 = 67,341.31/x
  3. Step 3: Cross multiply
    200,423.03x = 300,662.15 × 67,341.31
  4. Step 4: Simplify right side
    200,423.03x = 20,246,981,960.05
  5. Step 5: Solve for x
    x = 20,246,981,960.05/200,423.03
  6. Step 6: Final answer
    x = 101,021.24

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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.