Home / 300,909.24-451,220.40-111,361.08

Finding the Fourth Proportional to 300,909.24, 451,220.40 and 111,361.08

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Solution

The fourth proportional to 300,909.24, 451,220.40 and 111,361.08 is: 166,988.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,909.24 : 451,220.40 = 111,361.08 : x
  2. Step 2: Convert to fraction form
    300,909.24/451,220.40 = 111,361.08/x
  3. Step 3: Cross multiply
    300,909.24x = 451,220.40 × 111,361.08
  4. Step 4: Simplify right side
    300,909.24x = 50,248,391,062.03
  5. Step 5: Solve for x
    x = 50,248,391,062.03/300,909.24
  6. Step 6: Final answer
    x = 166,988.53

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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.