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Finding the Fourth Proportional to 417.02, 575.52 and 251.30

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Solution

The fourth proportional to 417.02, 575.52 and 251.30 is: 346.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.02 : 575.52 = 251.30 : x
  2. Step 2: Convert to fraction form
    417.02/575.52 = 251.30/x
  3. Step 3: Cross multiply
    417.02x = 575.52 × 251.30
  4. Step 4: Simplify right side
    417.02x = 144,628.18
  5. Step 5: Solve for x
    x = 144,628.18/417.02
  6. Step 6: Final answer
    x = 346.81

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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.