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Finding the Fourth Proportional to 351.94, 525.13 and 349.90

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Solution

The fourth proportional to 351.94, 525.13 and 349.90 is: 522.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.94 : 525.13 = 349.90 : x
  2. Step 2: Convert to fraction form
    351.94/525.13 = 349.90/x
  3. Step 3: Cross multiply
    351.94x = 525.13 × 349.90
  4. Step 4: Simplify right side
    351.94x = 183,742.99
  5. Step 5: Solve for x
    x = 183,742.99/351.94
  6. Step 6: Final answer
    x = 522.09

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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.