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Finding the Fourth Proportional to 350.54, 525.81 and 155.39

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Solution

The fourth proportional to 350.54, 525.81 and 155.39 is: 233.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    350.54 : 525.81 = 155.39 : x
  2. Step 2: Convert to fraction form
    350.54/525.81 = 155.39/x
  3. Step 3: Cross multiply
    350.54x = 525.81 × 155.39
  4. Step 4: Simplify right side
    350.54x = 81,702.99
  5. Step 5: Solve for x
    x = 81,702.99/350.54
  6. Step 6: Final answer
    x = 233.08

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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.