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Finding the Fourth Proportional to 498.06, 687.66 and 373.98

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Solution

The fourth proportional to 498.06, 687.66 and 373.98 is: 516.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    498.06 : 687.66 = 373.98 : x
  2. Step 2: Convert to fraction form
    498.06/687.66 = 373.98/x
  3. Step 3: Cross multiply
    498.06x = 687.66 × 373.98
  4. Step 4: Simplify right side
    498.06x = 257,171.09
  5. Step 5: Solve for x
    x = 257,171.09/498.06
  6. Step 6: Final answer
    x = 516.35

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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.