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Finding the Fourth Proportional to 200,391.42, 276,540.58 and 108,511.71

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Solution

The fourth proportional to 200,391.42, 276,540.58 and 108,511.71 is: 149,746.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,391.42 : 276,540.58 = 108,511.71 : x
  2. Step 2: Convert to fraction form
    200,391.42/276,540.58 = 108,511.71/x
  3. Step 3: Cross multiply
    200,391.42x = 276,540.58 × 108,511.71
  4. Step 4: Simplify right side
    200,391.42x = 30,007,891,220.19
  5. Step 5: Solve for x
    x = 30,007,891,220.19/200,391.42
  6. Step 6: Final answer
    x = 149,746.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.