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Finding the Fourth Proportional to 364.50, 547.22 and 210.53

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Solution

The fourth proportional to 364.50, 547.22 and 210.53 is: 316.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.50 : 547.22 = 210.53 : x
  2. Step 2: Convert to fraction form
    364.50/547.22 = 210.53/x
  3. Step 3: Cross multiply
    364.50x = 547.22 × 210.53
  4. Step 4: Simplify right side
    364.50x = 115,208.12
  5. Step 5: Solve for x
    x = 115,208.12/364.50
  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.