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Finding the Fourth Proportional to 507.76, 760.74 and 301.72

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Solution

The fourth proportional to 507.76, 760.74 and 301.72 is: 452.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.76 : 760.74 = 301.72 : x
  2. Step 2: Convert to fraction form
    507.76/760.74 = 301.72/x
  3. Step 3: Cross multiply
    507.76x = 760.74 × 301.72
  4. Step 4: Simplify right side
    507.76x = 229,530.47
  5. Step 5: Solve for x
    x = 229,530.47/507.76
  6. Step 6: Final answer
    x = 452.05

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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.