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Finding the Fourth Proportional to 369.73, 557.30 and 348.56

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Solution

The fourth proportional to 369.73, 557.30 and 348.56 is: 525.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.73 : 557.30 = 348.56 : x
  2. Step 2: Convert to fraction form
    369.73/557.30 = 348.56/x
  3. Step 3: Cross multiply
    369.73x = 557.30 × 348.56
  4. Step 4: Simplify right side
    369.73x = 194,252.49
  5. Step 5: Solve for x
    x = 194,252.49/369.73
  6. Step 6: Final answer
    x = 525.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.