Home / 212,288.43-318,435.21-84,236.16

Finding the Fourth Proportional to 212,288.43, 318,435.21 and 84,236.16

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Solution

The fourth proportional to 212,288.43, 318,435.21 and 84,236.16 is: 126,355.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,288.43 : 318,435.21 = 84,236.16 : x
  2. Step 2: Convert to fraction form
    212,288.43/318,435.21 = 84,236.16/x
  3. Step 3: Cross multiply
    212,288.43x = 318,435.21 × 84,236.16
  4. Step 4: Simplify right side
    212,288.43x = 26,823,760,493.33
  5. Step 5: Solve for x
    x = 26,823,760,493.33/212,288.43
  6. Step 6: Final answer
    x = 126,355.26

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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.