Home / 401,288.24-553,765.77-219,993.95

Finding the Fourth Proportional to 401,288.24, 553,765.77 and 219,993.95

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Solution

The fourth proportional to 401,288.24, 553,765.77 and 219,993.95 is: 303,585.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,288.24 : 553,765.77 = 219,993.95 : x
  2. Step 2: Convert to fraction form
    401,288.24/553,765.77 = 219,993.95/x
  3. Step 3: Cross multiply
    401,288.24x = 553,765.77 × 219,993.95
  4. Step 4: Simplify right side
    401,288.24x = 121,825,116,348.26
  5. Step 5: Solve for x
    x = 121,825,116,348.26/401,288.24
  6. Step 6: Final answer
    x = 303,585.07

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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.