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Finding the Fourth Proportional to 554.26, 831.48 and 229.65

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Solution

The fourth proportional to 554.26, 831.48 and 229.65 is: 344.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.26 : 831.48 = 229.65 : x
  2. Step 2: Convert to fraction form
    554.26/831.48 = 229.65/x
  3. Step 3: Cross multiply
    554.26x = 831.48 × 229.65
  4. Step 4: Simplify right side
    554.26x = 190,945.22
  5. Step 5: Solve for x
    x = 190,945.22/554.26
  6. Step 6: Final answer
    x = 344.51

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Double scale
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Similar ratio
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1.5x scale

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.