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Finding the Fourth Proportional to 347.40, 479.70 and 237.24

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Solution

The fourth proportional to 347.40, 479.70 and 237.24 is: 327.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.40 : 479.70 = 237.24 : x
  2. Step 2: Convert to fraction form
    347.40/479.70 = 237.24/x
  3. Step 3: Cross multiply
    347.40x = 479.70 × 237.24
  4. Step 4: Simplify right side
    347.40x = 113,804.03
  5. Step 5: Solve for x
    x = 113,804.03/347.40
  6. Step 6: Final answer
    x = 327.59

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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.