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Finding the Fourth Proportional to 373.50, 559.53 and 219.50

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Solution

The fourth proportional to 373.50, 559.53 and 219.50 is: 328.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.50 : 559.53 = 219.50 : x
  2. Step 2: Convert to fraction form
    373.50/559.53 = 219.50/x
  3. Step 3: Cross multiply
    373.50x = 559.53 × 219.50
  4. Step 4: Simplify right side
    373.50x = 122,814.04
  5. Step 5: Solve for x
    x = 122,814.04/373.50
  6. Step 6: Final answer
    x = 328.82

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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.