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Finding the Fourth Proportional to 344.00, 474.09 and 284.09

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Solution

The fourth proportional to 344.00, 474.09 and 284.09 is: 391.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.00 : 474.09 = 284.09 : x
  2. Step 2: Convert to fraction form
    344.00/474.09 = 284.09/x
  3. Step 3: Cross multiply
    344.00x = 474.09 × 284.09
  4. Step 4: Simplify right side
    344.00x = 134,681.86
  5. Step 5: Solve for x
    x = 134,681.86/344.00
  6. Step 6: Final answer
    x = 391.52

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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.