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Finding the Fourth Proportional to 348.69, 524.04 and 345.03

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Solution

The fourth proportional to 348.69, 524.04 and 345.03 is: 518.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.69 : 524.04 = 345.03 : x
  2. Step 2: Convert to fraction form
    348.69/524.04 = 345.03/x
  3. Step 3: Cross multiply
    348.69x = 524.04 × 345.03
  4. Step 4: Simplify right side
    348.69x = 180,809.52
  5. Step 5: Solve for x
    x = 180,809.52/348.69
  6. Step 6: Final answer
    x = 518.54

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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.