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Finding the Fourth Proportional to 256.04, 352.50 and 223.12

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Solution

The fourth proportional to 256.04, 352.50 and 223.12 is: 307.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    256.04 : 352.50 = 223.12 : x
  2. Step 2: Convert to fraction form
    256.04/352.50 = 223.12/x
  3. Step 3: Cross multiply
    256.04x = 352.50 × 223.12
  4. Step 4: Simplify right side
    256.04x = 78,649.80
  5. Step 5: Solve for x
    x = 78,649.80/256.04
  6. Step 6: Final answer
    x = 307.18

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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.