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Finding the Fourth Proportional to 373.41, 515.30 and 216.07

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Solution

The fourth proportional to 373.41, 515.30 and 216.07 is: 298.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.41 : 515.30 = 216.07 : x
  2. Step 2: Convert to fraction form
    373.41/515.30 = 216.07/x
  3. Step 3: Cross multiply
    373.41x = 515.30 × 216.07
  4. Step 4: Simplify right side
    373.41x = 111,338.50
  5. Step 5: Solve for x
    x = 111,338.50/373.41
  6. Step 6: Final answer
    x = 298.17

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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.