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Finding the Fourth Proportional to 474.14, 709.62 and 348.36

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Solution

The fourth proportional to 474.14, 709.62 and 348.36 is: 521.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.14 : 709.62 = 348.36 : x
  2. Step 2: Convert to fraction form
    474.14/709.62 = 348.36/x
  3. Step 3: Cross multiply
    474.14x = 709.62 × 348.36
  4. Step 4: Simplify right side
    474.14x = 247,203.22
  5. Step 5: Solve for x
    x = 247,203.22/474.14
  6. Step 6: Final answer
    x = 521.37

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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.