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Finding the Fourth Proportional to 417.99, 577.27 and 325.83

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Solution

The fourth proportional to 417.99, 577.27 and 325.83 is: 449.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.99 : 577.27 = 325.83 : x
  2. Step 2: Convert to fraction form
    417.99/577.27 = 325.83/x
  3. Step 3: Cross multiply
    417.99x = 577.27 × 325.83
  4. Step 4: Simplify right side
    417.99x = 188,091.88
  5. Step 5: Solve for x
    x = 188,091.88/417.99
  6. Step 6: Final answer
    x = 449.99

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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.