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Finding the Fourth Proportional to 373.58, 514.89 and 303.38

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Solution

The fourth proportional to 373.58, 514.89 and 303.38 is: 418.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.58 : 514.89 = 303.38 : x
  2. Step 2: Convert to fraction form
    373.58/514.89 = 303.38/x
  3. Step 3: Cross multiply
    373.58x = 514.89 × 303.38
  4. Step 4: Simplify right side
    373.58x = 156,204.75
  5. Step 5: Solve for x
    x = 156,204.75/373.58
  6. Step 6: Final answer
    x = 418.13

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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.