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Finding the Fourth Proportional to 385.03, 577.54 and 179.48

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Solution

The fourth proportional to 385.03, 577.54 and 179.48 is: 269.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    385.03 : 577.54 = 179.48 : x
  2. Step 2: Convert to fraction form
    385.03/577.54 = 179.48/x
  3. Step 3: Cross multiply
    385.03x = 577.54 × 179.48
  4. Step 4: Simplify right side
    385.03x = 103,657.87
  5. Step 5: Solve for x
    x = 103,657.87/385.03
  6. Step 6: Final answer
    x = 269.22

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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.