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Finding the Fourth Proportional to 385.01, 577.34 and 223.01

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Solution

The fourth proportional to 385.01, 577.34 and 223.01 is: 334.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    385.01 : 577.34 = 223.01 : x
  2. Step 2: Convert to fraction form
    385.01/577.34 = 223.01/x
  3. Step 3: Cross multiply
    385.01x = 577.34 × 223.01
  4. Step 4: Simplify right side
    385.01x = 128,751.48
  5. Step 5: Solve for x
    x = 128,751.48/385.01
  6. Step 6: Final answer
    x = 334.41

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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.