Home / 217,717.11-300,433.03-122,205.35

Finding the Fourth Proportional to 217,717.11, 300,433.03 and 122,205.35

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Solution

The fourth proportional to 217,717.11, 300,433.03 and 122,205.35 is: 168,634.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,717.11 : 300,433.03 = 122,205.35 : x
  2. Step 2: Convert to fraction form
    217,717.11/300,433.03 = 122,205.35/x
  3. Step 3: Cross multiply
    217,717.11x = 300,433.03 × 122,205.35
  4. Step 4: Simplify right side
    217,717.11x = 36,714,524,028.28
  5. Step 5: Solve for x
    x = 36,714,524,028.28/217,717.11
  6. Step 6: Final answer
    x = 168,634.08

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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.