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Finding the Fourth Proportional to 507.53, 760.76 and 263.72

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Solution

The fourth proportional to 507.53, 760.76 and 263.72 is: 395.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.53 : 760.76 = 263.72 : x
  2. Step 2: Convert to fraction form
    507.53/760.76 = 263.72/x
  3. Step 3: Cross multiply
    507.53x = 760.76 × 263.72
  4. Step 4: Simplify right side
    507.53x = 200,627.63
  5. Step 5: Solve for x
    x = 200,627.63/507.53
  6. Step 6: Final answer
    x = 395.30

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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.