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Finding the Fourth Proportional to 348.86, 520.08 and 332.45

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Solution

The fourth proportional to 348.86, 520.08 and 332.45 is: 495.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.86 : 520.08 = 332.45 : x
  2. Step 2: Convert to fraction form
    348.86/520.08 = 332.45/x
  3. Step 3: Cross multiply
    348.86x = 520.08 × 332.45
  4. Step 4: Simplify right side
    348.86x = 172,901.86
  5. Step 5: Solve for x
    x = 172,901.86/348.86
  6. Step 6: Final answer
    x = 495.62

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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.