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Finding the Fourth Proportional to 554.35, 831.53 and 229.71

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Solution

The fourth proportional to 554.35, 831.53 and 229.71 is: 344.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.35 : 831.53 = 229.71 : x
  2. Step 2: Convert to fraction form
    554.35/831.53 = 229.71/x
  3. Step 3: Cross multiply
    554.35x = 831.53 × 229.71
  4. Step 4: Simplify right side
    554.35x = 191,010.76
  5. Step 5: Solve for x
    x = 191,010.76/554.35
  6. Step 6: Final answer
    x = 344.57

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Double scale
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Similar ratio
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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.