Home / 312,235.91-468,355.07-75,578.21

Finding the Fourth Proportional to 312,235.91, 468,355.07 and 75,578.21

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Solution

The fourth proportional to 312,235.91, 468,355.07 and 75,578.21 is: 113,367.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,235.91 : 468,355.07 = 75,578.21 : x
  2. Step 2: Convert to fraction form
    312,235.91/468,355.07 = 75,578.21/x
  3. Step 3: Cross multiply
    312,235.91x = 468,355.07 × 75,578.21
  4. Step 4: Simplify right side
    312,235.91x = 35,397,435,682.19
  5. Step 5: Solve for x
    x = 35,397,435,682.19/312,235.91
  6. Step 6: Final answer
    x = 113,367.60

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1.5x scale

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.