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Finding the Fourth Proportional to 351.68, 524.08 and 340.07

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Solution

The fourth proportional to 351.68, 524.08 and 340.07 is: 506.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.68 : 524.08 = 340.07 : x
  2. Step 2: Convert to fraction form
    351.68/524.08 = 340.07/x
  3. Step 3: Cross multiply
    351.68x = 524.08 × 340.07
  4. Step 4: Simplify right side
    351.68x = 178,223.89
  5. Step 5: Solve for x
    x = 178,223.89/351.68
  6. Step 6: Final answer
    x = 506.78

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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.