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Finding the Fourth Proportional to 525.30, 787.14 and 294.05

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Solution

The fourth proportional to 525.30, 787.14 and 294.05 is: 440.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    525.30 : 787.14 = 294.05 : x
  2. Step 2: Convert to fraction form
    525.30/787.14 = 294.05/x
  3. Step 3: Cross multiply
    525.30x = 787.14 × 294.05
  4. Step 4: Simplify right side
    525.30x = 231,454.58
  5. Step 5: Solve for x
    x = 231,454.58/525.30
  6. Step 6: Final answer
    x = 440.61

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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.