Home / 268,935.80-403,403.70-225,633.20

Finding the Fourth Proportional to 268,935.80, 403,403.70 and 225,633.20

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Solution

The fourth proportional to 268,935.80, 403,403.70 and 225,633.20 is: 338,449.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,935.80 : 403,403.70 = 225,633.20 : x
  2. Step 2: Convert to fraction form
    268,935.80/403,403.70 = 225,633.20/x
  3. Step 3: Cross multiply
    268,935.80x = 403,403.70 × 225,633.20
  4. Step 4: Simplify right side
    268,935.80x = 91,021,267,722.84
  5. Step 5: Solve for x
    x = 91,021,267,722.84/268,935.80
  6. Step 6: Final answer
    x = 338,449.80

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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.