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Finding the Fourth Proportional to 374.79, 559.41 and 351.71

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Solution

The fourth proportional to 374.79, 559.41 and 351.71 is: 524.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    374.79 : 559.41 = 351.71 : x
  2. Step 2: Convert to fraction form
    374.79/559.41 = 351.71/x
  3. Step 3: Cross multiply
    374.79x = 559.41 × 351.71
  4. Step 4: Simplify right side
    374.79x = 196,751.04
  5. Step 5: Solve for x
    x = 196,751.04/374.79
  6. Step 6: Final answer
    x = 524.96

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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.