Home / 401,535.12-554,108.91-220,245.44

Finding the Fourth Proportional to 401,535.12, 554,108.91 and 220,245.44

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Solution

The fourth proportional to 401,535.12, 554,108.91 and 220,245.44 is: 303,933.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,535.12 : 554,108.91 = 220,245.44 : x
  2. Step 2: Convert to fraction form
    401,535.12/554,108.91 = 220,245.44/x
  3. Step 3: Cross multiply
    401,535.12x = 554,108.91 × 220,245.44
  4. Step 4: Simplify right side
    401,535.12x = 122,039,957,920.33
  5. Step 5: Solve for x
    x = 122,039,957,920.33/401,535.12
  6. Step 6: Final answer
    x = 303,933.46

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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.