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Finding the Fourth Proportional to 662.94, 995.10 and 354.72

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Solution

The fourth proportional to 662.94, 995.10 and 354.72 is: 532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    662.94 : 995.10 = 354.72 : x
  2. Step 2: Convert to fraction form
    662.94/995.10 = 354.72/x
  3. Step 3: Cross multiply
    662.94x = 995.10 × 354.72
  4. Step 4: Simplify right side
    662.94x = 352,981.87
  5. Step 5: Solve for x
    x = 352,981.87/662.94
  6. Step 6: Final answer
    x = 532.45

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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.