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Finding the Fourth Proportional to 525.06, 787.75 and 159.85

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Solution

The fourth proportional to 525.06, 787.75 and 159.85 is: 239.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.06 : 787.75 = 159.85 : x
  2. Step 2: Convert to fraction form
    525.06/787.75 = 159.85/x
  3. Step 3: Cross multiply
    525.06x = 787.75 × 159.85
  4. Step 4: Simplify right side
    525.06x = 125,924.01
  5. Step 5: Solve for x
    x = 125,924.01/525.06
  6. Step 6: Final answer
    x = 239.83

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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.