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Finding the Fourth Proportional to 504.83, 757.45 and 261.52

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Solution

The fourth proportional to 504.83, 757.45 and 261.52 is: 392.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.83 : 757.45 = 261.52 : x
  2. Step 2: Convert to fraction form
    504.83/757.45 = 261.52/x
  3. Step 3: Cross multiply
    504.83x = 757.45 × 261.52
  4. Step 4: Simplify right side
    504.83x = 198,085.78
  5. Step 5: Solve for x
    x = 198,085.78/504.83
  6. Step 6: Final answer
    x = 392.39

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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.