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Finding the Fourth Proportional to 418.08, 577.35 and 348.84

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Solution

The fourth proportional to 418.08, 577.35 and 348.84 is: 481.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    418.08 : 577.35 = 348.84 : x
  2. Step 2: Convert to fraction form
    418.08/577.35 = 348.84/x
  3. Step 3: Cross multiply
    418.08x = 577.35 × 348.84
  4. Step 4: Simplify right side
    418.08x = 201,402.77
  5. Step 5: Solve for x
    x = 201,402.77/418.08
  6. Step 6: Final answer
    x = 481.73

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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.