Home / 221,768.21-306,040.25-119,793.66

Finding the Fourth Proportional to 221,768.21, 306,040.25 and 119,793.66

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Solution

The fourth proportional to 221,768.21, 306,040.25 and 119,793.66 is: 165,315.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,768.21 : 306,040.25 = 119,793.66 : x
  2. Step 2: Convert to fraction form
    221,768.21/306,040.25 = 119,793.66/x
  3. Step 3: Cross multiply
    221,768.21x = 306,040.25 × 119,793.66
  4. Step 4: Simplify right side
    221,768.21x = 36,661,681,055.85
  5. Step 5: Solve for x
    x = 36,661,681,055.85/221,768.21
  6. Step 6: Final answer
    x = 165,315.32

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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.