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Finding the Fourth Proportional to 400,216.59, 552,311.99 and 228,131.43

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Solution

The fourth proportional to 400,216.59, 552,311.99 and 228,131.43 is: 314,828.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,216.59 : 552,311.99 = 228,131.43 : x
  2. Step 2: Convert to fraction form
    400,216.59/552,311.99 = 228,131.43/x
  3. Step 3: Cross multiply
    400,216.59x = 552,311.99 × 228,131.43
  4. Step 4: Simplify right side
    400,216.59x = 125,999,724,835.27
  5. Step 5: Solve for x
    x = 125,999,724,835.27/400,216.59
  6. Step 6: Final answer
    x = 314,828.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.