Home / 318,822.68-440,187.06-198,144.04

Finding the Fourth Proportional to 318,822.68, 440,187.06 and 198,144.04

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Solution

The fourth proportional to 318,822.68, 440,187.06 and 198,144.04 is: 273,570.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,822.68 : 440,187.06 = 198,144.04 : x
  2. Step 2: Convert to fraction form
    318,822.68/440,187.06 = 198,144.04/x
  3. Step 3: Cross multiply
    318,822.68x = 440,187.06 × 198,144.04
  4. Step 4: Simplify right side
    318,822.68x = 87,220,442,424.12
  5. Step 5: Solve for x
    x = 87,220,442,424.12/318,822.68
  6. Step 6: Final answer
    x = 273,570.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.