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Finding the Fourth Proportional to 360.98, 497.91 and 213.50

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Solution

The fourth proportional to 360.98, 497.91 and 213.50 is: 294.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.98 : 497.91 = 213.50 : x
  2. Step 2: Convert to fraction form
    360.98/497.91 = 213.50/x
  3. Step 3: Cross multiply
    360.98x = 497.91 × 213.50
  4. Step 4: Simplify right side
    360.98x = 106,303.79
  5. Step 5: Solve for x
    x = 106,303.79/360.98
  6. Step 6: Final answer
    x = 294.49

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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.