Home / 401,273.07-553,753.31-219,981.71

Finding the Fourth Proportional to 401,273.07, 553,753.31 and 219,981.71

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Solution

The fourth proportional to 401,273.07, 553,753.31 and 219,981.71 is: 303,572.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,273.07 : 553,753.31 = 219,981.71 : x
  2. Step 2: Convert to fraction form
    401,273.07/553,753.31 = 219,981.71/x
  3. Step 3: Cross multiply
    401,273.07x = 553,753.31 × 219,981.71
  4. Step 4: Simplify right side
    401,273.07x = 121,815,596,183.29
  5. Step 5: Solve for x
    x = 121,815,596,183.29/401,273.07
  6. Step 6: Final answer
    x = 303,572.82

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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.