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Finding the Fourth Proportional to 669.97, 1,005.01 and 183.06

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Solution

The fourth proportional to 669.97, 1,005.01 and 183.06 is: 274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    669.97 : 1,005.01 = 183.06 : x
  2. Step 2: Convert to fraction form
    669.97/1,005.01 = 183.06/x
  3. Step 3: Cross multiply
    669.97x = 1,005.01 × 183.06
  4. Step 4: Simplify right side
    669.97x = 183,976.67
  5. Step 5: Solve for x
    x = 183,976.67/669.97
  6. Step 6: Final answer
    x = 274.60

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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.