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Finding the Fourth Proportional to 373.42, 556.82 and 348.30

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Solution

The fourth proportional to 373.42, 556.82 and 348.30 is: 519.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.42 : 556.82 = 348.30 : x
  2. Step 2: Convert to fraction form
    373.42/556.82 = 348.30/x
  3. Step 3: Cross multiply
    373.42x = 556.82 × 348.30
  4. Step 4: Simplify right side
    373.42x = 193,940.41
  5. Step 5: Solve for x
    x = 193,940.41/373.42
  6. Step 6: Final answer
    x = 519.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.