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Finding the Fourth Proportional to 337.45, 506.61 and 260.47

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Solution

The fourth proportional to 337.45, 506.61 and 260.47 is: 391.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    337.45 : 506.61 = 260.47 : x
  2. Step 2: Convert to fraction form
    337.45/506.61 = 260.47/x
  3. Step 3: Cross multiply
    337.45x = 506.61 × 260.47
  4. Step 4: Simplify right side
    337.45x = 131,956.71
  5. Step 5: Solve for x
    x = 131,956.71/337.45
  6. Step 6: Final answer
    x = 391.04

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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.