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Finding the Fourth Proportional to 210,532.67, 315,800.37 and 84,183.53

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Solution

The fourth proportional to 210,532.67, 315,800.37 and 84,183.53 is: 126,275.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,532.67 : 315,800.37 = 84,183.53 : x
  2. Step 2: Convert to fraction form
    210,532.67/315,800.37 = 84,183.53/x
  3. Step 3: Cross multiply
    210,532.67x = 315,800.37 × 84,183.53
  4. Step 4: Simplify right side
    210,532.67x = 26,585,187,921.99
  5. Step 5: Solve for x
    x = 26,585,187,921.99/210,532.67
  6. Step 6: Final answer
    x = 126,275.83

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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.