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Finding the Fourth Proportional to 417.64, 626.06 and 372.04

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Solution

The fourth proportional to 417.64, 626.06 and 372.04 is: 557.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.64 : 626.06 = 372.04 : x
  2. Step 2: Convert to fraction form
    417.64/626.06 = 372.04/x
  3. Step 3: Cross multiply
    417.64x = 626.06 × 372.04
  4. Step 4: Simplify right side
    417.64x = 232,919.36
  5. Step 5: Solve for x
    x = 232,919.36/417.64
  6. Step 6: Final answer
    x = 557.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.