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Finding the Fourth Proportional to 333.18, 459.76 and 185.81

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Solution

The fourth proportional to 333.18, 459.76 and 185.81 is: 256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.18 : 459.76 = 185.81 : x
  2. Step 2: Convert to fraction form
    333.18/459.76 = 185.81/x
  3. Step 3: Cross multiply
    333.18x = 459.76 × 185.81
  4. Step 4: Simplify right side
    333.18x = 85,425.71
  5. Step 5: Solve for x
    x = 85,425.71/333.18
  6. Step 6: Final answer
    x = 256.40

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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.