Home / 216,493.07-324,656.55-74,311.85

Finding the Fourth Proportional to 216,493.07, 324,656.55 and 74,311.85

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Solution

The fourth proportional to 216,493.07, 324,656.55 and 74,311.85 is: 111,439.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,493.07 : 324,656.55 = 74,311.85 : x
  2. Step 2: Convert to fraction form
    216,493.07/324,656.55 = 74,311.85/x
  3. Step 3: Cross multiply
    216,493.07x = 324,656.55 × 74,311.85
  4. Step 4: Simplify right side
    216,493.07x = 24,125,827,221.83
  5. Step 5: Solve for x
    x = 24,125,827,221.83/216,493.07
  6. Step 6: Final answer
    x = 111,439.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.