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Finding the Fourth Proportional to 417.03, 575.55 and 346.96

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Solution

The fourth proportional to 417.03, 575.55 and 346.96 is: 478.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.03 : 575.55 = 346.96 : x
  2. Step 2: Convert to fraction form
    417.03/575.55 = 346.96/x
  3. Step 3: Cross multiply
    417.03x = 575.55 × 346.96
  4. Step 4: Simplify right side
    417.03x = 199,693.55
  5. Step 5: Solve for x
    x = 199,693.55/417.03
  6. Step 6: Final answer
    x = 478.85

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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.