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Finding the Fourth Proportional to 446.49, 669.49 and 153.83

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Solution

The fourth proportional to 446.49, 669.49 and 153.83 is: 230.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    446.49 : 669.49 = 153.83 : x
  2. Step 2: Convert to fraction form
    446.49/669.49 = 153.83/x
  3. Step 3: Cross multiply
    446.49x = 669.49 × 153.83
  4. Step 4: Simplify right side
    446.49x = 102,988.94
  5. Step 5: Solve for x
    x = 102,988.94/446.49
  6. Step 6: Final answer
    x = 230.66

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Double scale
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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.