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Finding the Fourth Proportional to 200,919.90, 301,270.35 and 60,660.30

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Solution

The fourth proportional to 200,919.90, 301,270.35 and 60,660.30 is: 90,957.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,919.90 : 301,270.35 = 60,660.30 : x
  2. Step 2: Convert to fraction form
    200,919.90/301,270.35 = 60,660.30/x
  3. Step 3: Cross multiply
    200,919.90x = 301,270.35 × 60,660.30
  4. Step 4: Simplify right side
    200,919.90x = 18,275,149,812.11
  5. Step 5: Solve for x
    x = 18,275,149,812.11/200,919.90
  6. Step 6: Final answer
    x = 90,957.39

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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.