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Finding the Fourth Proportional to 200,156.20, 300,161.50 and 67,004.82

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Solution

The fourth proportional to 200,156.20, 300,161.50 and 67,004.82 is: 100,482.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,156.20 : 300,161.50 = 67,004.82 : x
  2. Step 2: Convert to fraction form
    200,156.20/300,161.50 = 67,004.82/x
  3. Step 3: Cross multiply
    200,156.20x = 300,161.50 × 67,004.82
  4. Step 4: Simplify right side
    200,156.20x = 20,112,267,110.92
  5. Step 5: Solve for x
    x = 20,112,267,110.92/200,156.20
  6. Step 6: Final answer
    x = 100,482.86

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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.