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Finding the Fourth Proportional to 453.08, 625.26 and 253.91

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Solution

The fourth proportional to 453.08, 625.26 and 253.91 is: 350.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.08 : 625.26 = 253.91 : x
  2. Step 2: Convert to fraction form
    453.08/625.26 = 253.91/x
  3. Step 3: Cross multiply
    453.08x = 625.26 × 253.91
  4. Step 4: Simplify right side
    453.08x = 158,756.64
  5. Step 5: Solve for x
    x = 158,756.64/453.08
  6. Step 6: Final answer
    x = 350.40

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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.