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Finding the Fourth Proportional to 508.74, 701.05 and 361.11

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Solution

The fourth proportional to 508.74, 701.05 and 361.11 is: 497.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.74 : 701.05 = 361.11 : x
  2. Step 2: Convert to fraction form
    508.74/701.05 = 361.11/x
  3. Step 3: Cross multiply
    508.74x = 701.05 × 361.11
  4. Step 4: Simplify right side
    508.74x = 253,156.17
  5. Step 5: Solve for x
    x = 253,156.17/508.74
  6. Step 6: Final answer
    x = 497.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.