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Finding the Fourth Proportional to 347.93, 480.31 and 237.98

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Solution

The fourth proportional to 347.93, 480.31 and 237.98 is: 328.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.93 : 480.31 = 237.98 : x
  2. Step 2: Convert to fraction form
    347.93/480.31 = 237.98/x
  3. Step 3: Cross multiply
    347.93x = 480.31 × 237.98
  4. Step 4: Simplify right side
    347.93x = 114,301.18
  5. Step 5: Solve for x
    x = 114,301.18/347.93
  6. Step 6: Final answer
    x = 328.52

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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.