Home / 220,428.62-330,366.33-119,222.64

Finding the Fourth Proportional to 220,428.62, 330,366.33 and 119,222.64

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Solution

The fourth proportional to 220,428.62, 330,366.33 and 119,222.64 is: 178,684.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,428.62 : 330,366.33 = 119,222.64 : x
  2. Step 2: Convert to fraction form
    220,428.62/330,366.33 = 119,222.64/x
  3. Step 3: Cross multiply
    220,428.62x = 330,366.33 × 119,222.64
  4. Step 4: Simplify right side
    220,428.62x = 39,387,145,237.92
  5. Step 5: Solve for x
    x = 39,387,145,237.92/220,428.62
  6. Step 6: Final answer
    x = 178,684.35

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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.