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Finding the Fourth Proportional to 498.96, 689.85 and 369.63

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Solution

The fourth proportional to 498.96, 689.85 and 369.63 is: 511.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.96 : 689.85 = 369.63 : x
  2. Step 2: Convert to fraction form
    498.96/689.85 = 369.63/x
  3. Step 3: Cross multiply
    498.96x = 689.85 × 369.63
  4. Step 4: Simplify right side
    498.96x = 254,989.26
  5. Step 5: Solve for x
    x = 254,989.26/498.96
  6. Step 6: Final answer
    x = 511.04

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