Home / 327,222.21-490,332.30-220,209.45

Finding the Fourth Proportional to 327,222.21, 490,332.30 and 220,209.45

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Solution

The fourth proportional to 327,222.21, 490,332.30 and 220,209.45 is: 329,977.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,222.21 : 490,332.30 = 220,209.45 : x
  2. Step 2: Convert to fraction form
    327,222.21/490,332.30 = 220,209.45/x
  3. Step 3: Cross multiply
    327,222.21x = 490,332.30 × 220,209.45
  4. Step 4: Simplify right side
    327,222.21x = 107,975,806,100.24
  5. Step 5: Solve for x
    x = 107,975,806,100.24/327,222.21
  6. Step 6: Final answer
    x = 329,977.01

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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.