Home / 221,206.48-305,290.89-125,727.53

Finding the Fourth Proportional to 221,206.48, 305,290.89 and 125,727.53

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Solution

The fourth proportional to 221,206.48, 305,290.89 and 125,727.53 is: 173,518.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,206.48 : 305,290.89 = 125,727.53 : x
  2. Step 2: Convert to fraction form
    221,206.48/305,290.89 = 125,727.53/x
  3. Step 3: Cross multiply
    221,206.48x = 305,290.89 × 125,727.53
  4. Step 4: Simplify right side
    221,206.48x = 38,383,468,004.75
  5. Step 5: Solve for x
    x = 38,383,468,004.75/221,206.48
  6. Step 6: Final answer
    x = 173,518.73

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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.