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Finding the Fourth Proportional to 503.21, 694.58 and 346.37

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Solution

The fourth proportional to 503.21, 694.58 and 346.37 is: 478.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    503.21 : 694.58 = 346.37 : x
  2. Step 2: Convert to fraction form
    503.21/694.58 = 346.37/x
  3. Step 3: Cross multiply
    503.21x = 694.58 × 346.37
  4. Step 4: Simplify right side
    503.21x = 240,576.47
  5. Step 5: Solve for x
    x = 240,576.47/503.21
  6. Step 6: Final answer
    x = 478.08

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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.