Home / 311,919.10-465,622.33-274,085.20

Finding the Fourth Proportional to 311,919.10, 465,622.33 and 274,085.20

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Solution

The fourth proportional to 311,919.10, 465,622.33 and 274,085.20 is: 409,145.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,919.10 : 465,622.33 = 274,085.20 : x
  2. Step 2: Convert to fraction form
    311,919.10/465,622.33 = 274,085.20/x
  3. Step 3: Cross multiply
    311,919.10x = 465,622.33 × 274,085.20
  4. Step 4: Simplify right side
    311,919.10x = 127,620,189,442.52
  5. Step 5: Solve for x
    x = 127,620,189,442.52/311,919.10
  6. Step 6: Final answer
    x = 409,145.16

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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.