Home / 208,249.40-312,371.32-50,479.20

Finding the Fourth Proportional to 208,249.40, 312,371.32 and 50,479.20

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Solution

The fourth proportional to 208,249.40, 312,371.32 and 50,479.20 is: 75,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,249.40 : 312,371.32 = 50,479.20 : x
  2. Step 2: Convert to fraction form
    208,249.40/312,371.32 = 50,479.20/x
  3. Step 3: Cross multiply
    208,249.40x = 312,371.32 × 50,479.20
  4. Step 4: Simplify right side
    208,249.40x = 15,768,254,336.54
  5. Step 5: Solve for x
    x = 15,768,254,336.54/208,249.40
  6. Step 6: Final answer
    x = 75,718.13

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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.