Home / 216,288.42-324,433.39-66,527.70

Finding the Fourth Proportional to 216,288.42, 324,433.39 and 66,527.70

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Solution

The fourth proportional to 216,288.42, 324,433.39 and 66,527.70 is: 99,791.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,288.42 : 324,433.39 = 66,527.70 : x
  2. Step 2: Convert to fraction form
    216,288.42/324,433.39 = 66,527.70/x
  3. Step 3: Cross multiply
    216,288.42x = 324,433.39 × 66,527.70
  4. Step 4: Simplify right side
    216,288.42x = 21,583,807,239.90
  5. Step 5: Solve for x
    x = 21,583,807,239.90/216,288.42
  6. Step 6: Final answer
    x = 99,791.78

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1.5x scale

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.