Home / 312,623.62-468,839.67-112,919.38

Finding the Fourth Proportional to 312,623.62, 468,839.67 and 112,919.38

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Solution

The fourth proportional to 312,623.62, 468,839.67 and 112,919.38 is: 169,344.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,623.62 : 468,839.67 = 112,919.38 : x
  2. Step 2: Convert to fraction form
    312,623.62/468,839.67 = 112,919.38/x
  3. Step 3: Cross multiply
    312,623.62x = 468,839.67 × 112,919.38
  4. Step 4: Simplify right side
    312,623.62x = 52,941,084,855.80
  5. Step 5: Solve for x
    x = 52,941,084,855.80/312,623.62
  6. Step 6: Final answer
    x = 169,344.48

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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.