Home / 216,634.39-324,871.99-74,439.34

Finding the Fourth Proportional to 216,634.39, 324,871.99 and 74,439.34

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Solution

The fourth proportional to 216,634.39, 324,871.99 and 74,439.34 is: 111,631.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,634.39 : 324,871.99 = 74,439.34 : x
  2. Step 2: Convert to fraction form
    216,634.39/324,871.99 = 74,439.34/x
  3. Step 3: Cross multiply
    216,634.39x = 324,871.99 × 74,439.34
  4. Step 4: Simplify right side
    216,634.39x = 24,183,255,521.81
  5. Step 5: Solve for x
    x = 24,183,255,521.81/216,634.39
  6. Step 6: Final answer
    x = 111,631.66

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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.