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Finding the Fourth Proportional to 200,119.54, 300,195.08 and 67,000.36

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Solution

The fourth proportional to 200,119.54, 300,195.08 and 67,000.36 is: 100,505.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,119.54 : 300,195.08 = 67,000.36 : x
  2. Step 2: Convert to fraction form
    200,119.54/300,195.08 = 67,000.36/x
  3. Step 3: Cross multiply
    200,119.54x = 300,195.08 × 67,000.36
  4. Step 4: Simplify right side
    200,119.54x = 20,113,178,430.23
  5. Step 5: Solve for x
    x = 20,113,178,430.23/200,119.54
  6. Step 6: Final answer
    x = 100,505.82

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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.