Home / 216,277.32-324,485.54-103,965.72

Finding the Fourth Proportional to 216,277.32, 324,485.54 and 103,965.72

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Solution

The fourth proportional to 216,277.32, 324,485.54 and 103,965.72 is: 155,982.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,277.32 : 324,485.54 = 103,965.72 : x
  2. Step 2: Convert to fraction form
    216,277.32/324,485.54 = 103,965.72/x
  3. Step 3: Cross multiply
    216,277.32x = 324,485.54 × 103,965.72
  4. Step 4: Simplify right side
    216,277.32x = 33,735,372,795.69
  5. Step 5: Solve for x
    x = 33,735,372,795.69/216,277.32
  6. Step 6: Final answer
    x = 155,982.02

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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.