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Finding the Fourth Proportional to 221.23, 303.98 and 207.01

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Solution

The fourth proportional to 221.23, 303.98 and 207.01 is: 284.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    221.23 : 303.98 = 207.01 : x
  2. Step 2: Convert to fraction form
    221.23/303.98 = 207.01/x
  3. Step 3: Cross multiply
    221.23x = 303.98 × 207.01
  4. Step 4: Simplify right side
    221.23x = 62,925.86
  5. Step 5: Solve for x
    x = 62,925.86/221.23
  6. Step 6: Final answer
    x = 284.44

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.