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Finding the Fourth Proportional to 525.15, 786.84 and 250.64

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Solution

The fourth proportional to 525.15, 786.84 and 250.64 is: 375.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.15 : 786.84 = 250.64 : x
  2. Step 2: Convert to fraction form
    525.15/786.84 = 250.64/x
  3. Step 3: Cross multiply
    525.15x = 786.84 × 250.64
  4. Step 4: Simplify right side
    525.15x = 197,211.65
  5. Step 5: Solve for x
    x = 197,211.65/525.15
  6. Step 6: Final answer
    x = 375.53

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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.