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Finding the Fourth Proportional to 636.98, 954.82 and 358.93

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Solution

The fourth proportional to 636.98, 954.82 and 358.93 is: 538.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    636.98 : 954.82 = 358.93 : x
  2. Step 2: Convert to fraction form
    636.98/954.82 = 358.93/x
  3. Step 3: Cross multiply
    636.98x = 954.82 × 358.93
  4. Step 4: Simplify right side
    636.98x = 342,708.77
  5. Step 5: Solve for x
    x = 342,708.77/636.98
  6. Step 6: Final answer
    x = 538.02

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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.