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Finding the Fourth Proportional to 200,025.78, 276,032.91 and 113,989.88

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Solution

The fourth proportional to 200,025.78, 276,032.91 and 113,989.88 is: 157,304.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,025.78 : 276,032.91 = 113,989.88 : x
  2. Step 2: Convert to fraction form
    200,025.78/276,032.91 = 113,989.88/x
  3. Step 3: Cross multiply
    200,025.78x = 276,032.91 × 113,989.88
  4. Step 4: Simplify right side
    200,025.78x = 31,464,956,906.79
  5. Step 5: Solve for x
    x = 31,464,956,906.79/200,025.78
  6. Step 6: Final answer
    x = 157,304.51

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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.