Home / 290,022.24-400,634.64-274,888.80

Finding the Fourth Proportional to 290,022.24, 400,634.64 and 274,888.80

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Solution

The fourth proportional to 290,022.24, 400,634.64 and 274,888.80 is: 379,729.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,022.24 : 400,634.64 = 274,888.80 : x
  2. Step 2: Convert to fraction form
    290,022.24/400,634.64 = 274,888.80/x
  3. Step 3: Cross multiply
    290,022.24x = 400,634.64 × 274,888.80
  4. Step 4: Simplify right side
    290,022.24x = 110,129,975,428.03
  5. Step 5: Solve for x
    x = 110,129,975,428.03/290,022.24
  6. Step 6: Final answer
    x = 379,729.41

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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.