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Finding the Fourth Proportional to 200,687.48, 300,440.68 and 133,962.10

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Solution

The fourth proportional to 200,687.48, 300,440.68 and 133,962.10 is: 200,548.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,687.48 : 300,440.68 = 133,962.10 : x
  2. Step 2: Convert to fraction form
    200,687.48/300,440.68 = 133,962.10/x
  3. Step 3: Cross multiply
    200,687.48x = 300,440.68 × 133,962.10
  4. Step 4: Simplify right side
    200,687.48x = 40,247,664,418.23
  5. Step 5: Solve for x
    x = 40,247,664,418.23/200,687.48
  6. Step 6: Final answer
    x = 200,548.96

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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.