Home / 216,922.72-299,318.88-121,433.44

Finding the Fourth Proportional to 216,922.72, 299,318.88 and 121,433.44

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Solution

The fourth proportional to 216,922.72, 299,318.88 and 121,433.44 is: 167,558.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,922.72 : 299,318.88 = 121,433.44 : x
  2. Step 2: Convert to fraction form
    216,922.72/299,318.88 = 121,433.44/x
  3. Step 3: Cross multiply
    216,922.72x = 299,318.88 × 121,433.44
  4. Step 4: Simplify right side
    216,922.72x = 36,347,321,255.35
  5. Step 5: Solve for x
    x = 36,347,321,255.35/216,922.72
  6. Step 6: Final answer
    x = 167,558.85

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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.