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Finding the Fourth Proportional to 355.50, 533.29 and 95.51

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Solution

The fourth proportional to 355.50, 533.29 and 95.51 is: 143.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    355.50 : 533.29 = 95.51 : x
  2. Step 2: Convert to fraction form
    355.50/533.29 = 95.51/x
  3. Step 3: Cross multiply
    355.50x = 533.29 × 95.51
  4. Step 4: Simplify right side
    355.50x = 50,931.62
  5. Step 5: Solve for x
    x = 50,931.62/355.50
  6. Step 6: Final answer
    x = 143.27

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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.