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Finding the Fourth Proportional to 199,422.90, 299,134.35 and 133,067.70

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Solution

The fourth proportional to 199,422.90, 299,134.35 and 133,067.70 is: 199,601.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,422.90 : 299,134.35 = 133,067.70 : x
  2. Step 2: Convert to fraction form
    199,422.90/299,134.35 = 133,067.70/x
  3. Step 3: Cross multiply
    199,422.90x = 299,134.35 × 133,067.70
  4. Step 4: Simplify right side
    199,422.90x = 39,805,119,945.50
  5. Step 5: Solve for x
    x = 39,805,119,945.50/199,422.90
  6. Step 6: Final answer
    x = 199,601.55

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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.