Home / 311,939.10-465,652.13-274,105.20

Finding the Fourth Proportional to 311,939.10, 465,652.13 and 274,105.20

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Solution

The fourth proportional to 311,939.10, 465,652.13 and 274,105.20 is: 409,174.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,939.10 : 465,652.13 = 274,105.20 : x
  2. Step 2: Convert to fraction form
    311,939.10/465,652.13 = 274,105.20/x
  3. Step 3: Cross multiply
    311,939.10x = 465,652.13 × 274,105.20
  4. Step 4: Simplify right side
    311,939.10x = 127,637,670,224.08
  5. Step 5: Solve for x
    x = 127,637,670,224.08/311,939.10
  6. Step 6: Final answer
    x = 409,174.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.