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Finding the Fourth Proportional to 417.99, 625.95 and 244.20

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Solution

The fourth proportional to 417.99, 625.95 and 244.20 is: 365.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.99 : 625.95 = 244.20 : x
  2. Step 2: Convert to fraction form
    417.99/625.95 = 244.20/x
  3. Step 3: Cross multiply
    417.99x = 625.95 × 244.20
  4. Step 4: Simplify right side
    417.99x = 152,856.99
  5. Step 5: Solve for x
    x = 152,856.99/417.99
  6. Step 6: Final answer
    x = 365.70

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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.