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Finding the Fourth Proportional to 373.95, 515.63 and 263.39

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Solution

The fourth proportional to 373.95, 515.63 and 263.39 is: 363.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.95 : 515.63 = 263.39 : x
  2. Step 2: Convert to fraction form
    373.95/515.63 = 263.39/x
  3. Step 3: Cross multiply
    373.95x = 515.63 × 263.39
  4. Step 4: Simplify right side
    373.95x = 135,809.87
  5. Step 5: Solve for x
    x = 135,809.87/373.95
  6. Step 6: Final answer
    x = 363.18

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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.