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Finding the Fourth Proportional to 347.74, 521.10 and 237.98

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Solution

The fourth proportional to 347.74, 521.10 and 237.98 is: 356.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.74 : 521.10 = 237.98 : x
  2. Step 2: Convert to fraction form
    347.74/521.10 = 237.98/x
  3. Step 3: Cross multiply
    347.74x = 521.10 × 237.98
  4. Step 4: Simplify right side
    347.74x = 124,012.68
  5. Step 5: Solve for x
    x = 124,012.68/347.74
  6. Step 6: Final answer
    x = 356.63

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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.