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Finding the Fourth Proportional to 417.16, 626.46 and 375.40

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Solution

The fourth proportional to 417.16, 626.46 and 375.40 is: 563.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    417.16 : 626.46 = 375.40 : x
  2. Step 2: Convert to fraction form
    417.16/626.46 = 375.40/x
  3. Step 3: Cross multiply
    417.16x = 626.46 × 375.40
  4. Step 4: Simplify right side
    417.16x = 235,173.08
  5. Step 5: Solve for x
    x = 235,173.08/417.16
  6. Step 6: Final answer
    x = 563.75

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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.