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Finding the Fourth Proportional to 451.17, 674.15 and 358.89

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Solution

The fourth proportional to 451.17, 674.15 and 358.89 is: 536.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.17 : 674.15 = 358.89 : x
  2. Step 2: Convert to fraction form
    451.17/674.15 = 358.89/x
  3. Step 3: Cross multiply
    451.17x = 674.15 × 358.89
  4. Step 4: Simplify right side
    451.17x = 241,943.90
  5. Step 5: Solve for x
    x = 241,943.90/451.17
  6. Step 6: Final answer
    x = 536.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.