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Finding the Fourth Proportional to 401,331.57, 553,848.12 and 226,887.90

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Solution

The fourth proportional to 401,331.57, 553,848.12 and 226,887.90 is: 313,111.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,331.57 : 553,848.12 = 226,887.90 : x
  2. Step 2: Convert to fraction form
    401,331.57/553,848.12 = 226,887.90/x
  3. Step 3: Cross multiply
    401,331.57x = 553,848.12 × 226,887.90
  4. Step 4: Simplify right side
    401,331.57x = 125,661,436,865.75
  5. Step 5: Solve for x
    x = 125,661,436,865.75/401,331.57
  6. Step 6: Final answer
    x = 313,111.27

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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.