Home / 312,388.36-468,578.38-75,733.16

Finding the Fourth Proportional to 312,388.36, 468,578.38 and 75,733.16

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Solution

The fourth proportional to 312,388.36, 468,578.38 and 75,733.16 is: 113,598.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,388.36 : 468,578.38 = 75,733.16 : x
  2. Step 2: Convert to fraction form
    312,388.36/468,578.38 = 75,733.16/x
  3. Step 3: Cross multiply
    312,388.36x = 468,578.38 × 75,733.16
  4. Step 4: Simplify right side
    312,388.36x = 35,486,921,425.08
  5. Step 5: Solve for x
    x = 35,486,921,425.08/312,388.36
  6. Step 6: Final answer
    x = 113,598.73

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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.