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Finding the Fourth Proportional to 333.39, 462.18 and 315.83

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Solution

The fourth proportional to 333.39, 462.18 and 315.83 is: 437.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.39 : 462.18 = 315.83 : x
  2. Step 2: Convert to fraction form
    333.39/462.18 = 315.83/x
  3. Step 3: Cross multiply
    333.39x = 462.18 × 315.83
  4. Step 4: Simplify right side
    333.39x = 145,968.00
  5. Step 5: Solve for x
    x = 145,968.00/333.39
  6. Step 6: Final answer
    x = 437.83

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.