Home / 221,381.32-305,493.78-125,911.24

Finding the Fourth Proportional to 221,381.32, 305,493.78 and 125,911.24

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Solution

The fourth proportional to 221,381.32, 305,493.78 and 125,911.24 is: 173,750.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,381.32 : 305,493.78 = 125,911.24 : x
  2. Step 2: Convert to fraction form
    221,381.32/305,493.78 = 125,911.24/x
  3. Step 3: Cross multiply
    221,381.32x = 305,493.78 × 125,911.24
  4. Step 4: Simplify right side
    221,381.32x = 38,465,100,652.09
  5. Step 5: Solve for x
    x = 38,465,100,652.09/221,381.32
  6. Step 6: Final answer
    x = 173,750.44

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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.