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Finding the Fourth Proportional to 470.00, 704.39 and 253.33

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Solution

The fourth proportional to 470.00, 704.39 and 253.33 is: 379.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    470.00 : 704.39 = 253.33 : x
  2. Step 2: Convert to fraction form
    470.00/704.39 = 253.33/x
  3. Step 3: Cross multiply
    470.00x = 704.39 × 253.33
  4. Step 4: Simplify right side
    470.00x = 178,440.09
  5. Step 5: Solve for x
    x = 178,440.09/470.00
  6. Step 6: Final answer
    x = 379.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.