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Finding the Fourth Proportional to 200,425.53, 300,665.90 and 67,343.81

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Solution

The fourth proportional to 200,425.53, 300,665.90 and 67,343.81 is: 101,024.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,425.53 : 300,665.90 = 67,343.81 : x
  2. Step 2: Convert to fraction form
    200,425.53/300,665.90 = 67,343.81/x
  3. Step 3: Cross multiply
    200,425.53x = 300,665.90 × 67,343.81
  4. Step 4: Simplify right side
    200,425.53x = 20,247,987,243.08
  5. Step 5: Solve for x
    x = 20,247,987,243.08/200,425.53
  6. Step 6: Final answer
    x = 101,024.99

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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.