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Finding the Fourth Proportional to 453.04, 626.34 and 354.76

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Solution

The fourth proportional to 453.04, 626.34 and 354.76 is: 490.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.04 : 626.34 = 354.76 : x
  2. Step 2: Convert to fraction form
    453.04/626.34 = 354.76/x
  3. Step 3: Cross multiply
    453.04x = 626.34 × 354.76
  4. Step 4: Simplify right side
    453.04x = 222,200.38
  5. Step 5: Solve for x
    x = 222,200.38/453.04
  6. Step 6: Final answer
    x = 490.47

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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.