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Finding the Fourth Proportional to 344.59, 515.80 and 222.58

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Solution

The fourth proportional to 344.59, 515.80 and 222.58 is: 333.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.59 : 515.80 = 222.58 : x
  2. Step 2: Convert to fraction form
    344.59/515.80 = 222.58/x
  3. Step 3: Cross multiply
    344.59x = 515.80 × 222.58
  4. Step 4: Simplify right side
    344.59x = 114,807.69
  5. Step 5: Solve for x
    x = 114,807.69/344.59
  6. Step 6: Final answer
    x = 333.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.