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Finding the Fourth Proportional to 401,367.39, 553,865.67 and 229,251.54

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Solution

The fourth proportional to 401,367.39, 553,865.67 and 229,251.54 is: 316,354.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,367.39 : 553,865.67 = 229,251.54 : x
  2. Step 2: Convert to fraction form
    401,367.39/553,865.67 = 229,251.54/x
  3. Step 3: Cross multiply
    401,367.39x = 553,865.67 × 229,251.54
  4. Step 4: Simplify right side
    401,367.39x = 126,974,557,800.63
  5. Step 5: Solve for x
    x = 126,974,557,800.63/401,367.39
  6. Step 6: Final answer
    x = 316,354.94

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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.