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Finding the Fourth Proportional to 348.48, 525.35 and 325.58

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Solution

The fourth proportional to 348.48, 525.35 and 325.58 is: 490.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.48 : 525.35 = 325.58 : x
  2. Step 2: Convert to fraction form
    348.48/525.35 = 325.58/x
  3. Step 3: Cross multiply
    348.48x = 525.35 × 325.58
  4. Step 4: Simplify right side
    348.48x = 171,043.45
  5. Step 5: Solve for x
    x = 171,043.45/348.48
  6. Step 6: Final answer
    x = 490.83

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.