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Finding the Fourth Proportional to 362.08, 498.18 and 318.34

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Solution

The fourth proportional to 362.08, 498.18 and 318.34 is: 438.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    362.08 : 498.18 = 318.34 : x
  2. Step 2: Convert to fraction form
    362.08/498.18 = 318.34/x
  3. Step 3: Cross multiply
    362.08x = 498.18 × 318.34
  4. Step 4: Simplify right side
    362.08x = 158,590.62
  5. Step 5: Solve for x
    x = 158,590.62/362.08
  6. Step 6: Final answer
    x = 438.00

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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.