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Finding the Fourth Proportional to 507.67, 761.51 and 122.92

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Solution

The fourth proportional to 507.67, 761.51 and 122.92 is: 184.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.67 : 761.51 = 122.92 : x
  2. Step 2: Convert to fraction form
    507.67/761.51 = 122.92/x
  3. Step 3: Cross multiply
    507.67x = 761.51 × 122.92
  4. Step 4: Simplify right side
    507.67x = 93,605.61
  5. Step 5: Solve for x
    x = 93,605.61/507.67
  6. Step 6: Final answer
    x = 184.38

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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.