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Finding the Fourth Proportional to 199,838.62, 300,139.44 and 115,767.64

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Solution

The fourth proportional to 199,838.62, 300,139.44 and 115,767.64 is: 173,872.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,838.62 : 300,139.44 = 115,767.64 : x
  2. Step 2: Convert to fraction form
    199,838.62/300,139.44 = 115,767.64/x
  3. Step 3: Cross multiply
    199,838.62x = 300,139.44 × 115,767.64
  4. Step 4: Simplify right side
    199,838.62x = 34,746,434,639.72
  5. Step 5: Solve for x
    x = 34,746,434,639.72/199,838.62
  6. Step 6: Final answer
    x = 173,872.47

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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.