Home / 221,468.48-305,622.24-120,867.20

Finding the Fourth Proportional to 221,468.48, 305,622.24 and 120,867.20

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Solution

The fourth proportional to 221,468.48, 305,622.24 and 120,867.20 is: 166,794.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,468.48 : 305,622.24 = 120,867.20 : x
  2. Step 2: Convert to fraction form
    221,468.48/305,622.24 = 120,867.20/x
  3. Step 3: Cross multiply
    221,468.48x = 305,622.24 × 120,867.20
  4. Step 4: Simplify right side
    221,468.48x = 36,939,704,406.53
  5. Step 5: Solve for x
    x = 36,939,704,406.53/221,468.48
  6. Step 6: Final answer
    x = 166,794.41

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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.