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Finding the Fourth Proportional to 200,003.92, 276,029.76 and 115,119.20

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Solution

The fourth proportional to 200,003.92, 276,029.76 and 115,119.20 is: 158,878.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,003.92 : 276,029.76 = 115,119.20 : x
  2. Step 2: Convert to fraction form
    200,003.92/276,029.76 = 115,119.20/x
  3. Step 3: Cross multiply
    200,003.92x = 276,029.76 × 115,119.20
  4. Step 4: Simplify right side
    200,003.92x = 31,776,325,147.39
  5. Step 5: Solve for x
    x = 31,776,325,147.39/200,003.92
  6. Step 6: Final answer
    x = 158,878.51

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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.