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Finding the Fourth Proportional to 200,369.30, 276,535.22 and 115,486.97

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Solution

The fourth proportional to 200,369.30, 276,535.22 and 115,486.97 is: 159,386.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,369.30 : 276,535.22 = 115,486.97 : x
  2. Step 2: Convert to fraction form
    200,369.30/276,535.22 = 115,486.97/x
  3. Step 3: Cross multiply
    200,369.30x = 276,535.22 × 115,486.97
  4. Step 4: Simplify right side
    200,369.30x = 31,936,212,695.97
  5. Step 5: Solve for x
    x = 31,936,212,695.97/200,369.30
  6. Step 6: Final answer
    x = 159,386.76

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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.