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Finding the Fourth Proportional to 454.72, 681.84 and 358.24

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Solution

The fourth proportional to 454.72, 681.84 and 358.24 is: 537.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    454.72 : 681.84 = 358.24 : x
  2. Step 2: Convert to fraction form
    454.72/681.84 = 358.24/x
  3. Step 3: Cross multiply
    454.72x = 681.84 × 358.24
  4. Step 4: Simplify right side
    454.72x = 244,262.36
  5. Step 5: Solve for x
    x = 244,262.36/454.72
  6. Step 6: Final answer
    x = 537.17

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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.