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Finding the Fourth Proportional to 373.34, 559.78 and 210.80

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Solution

The fourth proportional to 373.34, 559.78 and 210.80 is: 316.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    373.34 : 559.78 = 210.80 : x
  2. Step 2: Convert to fraction form
    373.34/559.78 = 210.80/x
  3. Step 3: Cross multiply
    373.34x = 559.78 × 210.80
  4. Step 4: Simplify right side
    373.34x = 118,002.50
  5. Step 5: Solve for x
    x = 118,002.50/373.34
  6. Step 6: Final answer
    x = 316.07

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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.