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Finding the Fourth Proportional to 226,363.88, 312,390.60 and 135,734.60

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Solution

The fourth proportional to 226,363.88, 312,390.60 and 135,734.60 is: 187,318.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,363.88 : 312,390.60 = 135,734.60 : x
  2. Step 2: Convert to fraction form
    226,363.88/312,390.60 = 135,734.60/x
  3. Step 3: Cross multiply
    226,363.88x = 312,390.60 × 135,734.60
  4. Step 4: Simplify right side
    226,363.88x = 42,402,213,134.76
  5. Step 5: Solve for x
    x = 42,402,213,134.76/226,363.88
  6. Step 6: Final answer
    x = 187,318.81

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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.