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Finding the Fourth Proportional to 200,439.48, 300,683.97 and 65,500.38

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Solution

The fourth proportional to 200,439.48, 300,683.97 and 65,500.38 is: 98,258.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,439.48 : 300,683.97 = 65,500.38 : x
  2. Step 2: Convert to fraction form
    200,439.48/300,683.97 = 65,500.38/x
  3. Step 3: Cross multiply
    200,439.48x = 300,683.97 × 65,500.38
  4. Step 4: Simplify right side
    200,439.48x = 19,694,914,294.91
  5. Step 5: Solve for x
    x = 19,694,914,294.91/200,439.48
  6. Step 6: Final answer
    x = 98,258.66

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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.