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Finding the Fourth Proportional to 333.94, 459.74 and 290.26

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Solution

The fourth proportional to 333.94, 459.74 and 290.26 is: 399.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.94 : 459.74 = 290.26 : x
  2. Step 2: Convert to fraction form
    333.94/459.74 = 290.26/x
  3. Step 3: Cross multiply
    333.94x = 459.74 × 290.26
  4. Step 4: Simplify right side
    333.94x = 133,443.71
  5. Step 5: Solve for x
    x = 133,443.71/333.94
  6. Step 6: Final answer
    x = 399.61

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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.