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Finding the Fourth Proportional to 401,084.39, 553,443.84 and 239,880.62

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Solution

The fourth proportional to 401,084.39, 553,443.84 and 239,880.62 is: 331,003.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,084.39 : 553,443.84 = 239,880.62 : x
  2. Step 2: Convert to fraction form
    401,084.39/553,443.84 = 239,880.62/x
  3. Step 3: Cross multiply
    401,084.39x = 553,443.84 × 239,880.62
  4. Step 4: Simplify right side
    401,084.39x = 132,760,452,857.99
  5. Step 5: Solve for x
    x = 132,760,452,857.99/401,084.39
  6. Step 6: Final answer
    x = 331,003.79

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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.