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Finding the Fourth Proportional to 554.41, 831.33 and 310.87

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Solution

The fourth proportional to 554.41, 831.33 and 310.87 is: 466.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.41 : 831.33 = 310.87 : x
  2. Step 2: Convert to fraction form
    554.41/831.33 = 310.87/x
  3. Step 3: Cross multiply
    554.41x = 831.33 × 310.87
  4. Step 4: Simplify right side
    554.41x = 258,431.40
  5. Step 5: Solve for x
    x = 258,431.40/554.41
  6. Step 6: Final answer
    x = 466.14

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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.