Home / 210,049.70-315,121.38-60,278.31

Finding the Fourth Proportional to 210,049.70, 315,121.38 and 60,278.31

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Solution

The fourth proportional to 210,049.70, 315,121.38 and 60,278.31 is: 90,430.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,049.70 : 315,121.38 = 60,278.31 : x
  2. Step 2: Convert to fraction form
    210,049.70/315,121.38 = 60,278.31/x
  3. Step 3: Cross multiply
    210,049.70x = 315,121.38 × 60,278.31
  4. Step 4: Simplify right side
    210,049.70x = 18,994,984,231.27
  5. Step 5: Solve for x
    x = 18,994,984,231.27/210,049.70
  6. Step 6: Final answer
    x = 90,430.91

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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.