Home / 210,049.94-315,121.75-60,278.56

Finding the Fourth Proportional to 210,049.94, 315,121.75 and 60,278.56

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Solution

The fourth proportional to 210,049.94, 315,121.75 and 60,278.56 is: 90,431.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,049.94 : 315,121.75 = 60,278.56 : x
  2. Step 2: Convert to fraction form
    210,049.94/315,121.75 = 60,278.56/x
  3. Step 3: Cross multiply
    210,049.94x = 315,121.75 × 60,278.56
  4. Step 4: Simplify right side
    210,049.94x = 18,995,085,314.68
  5. Step 5: Solve for x
    x = 18,995,085,314.68/210,049.94
  6. Step 6: Final answer
    x = 90,431.28

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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.