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Finding the Fourth Proportional to 235,055.31, 324,382.89 and 127,631.89

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Solution

The fourth proportional to 235,055.31, 324,382.89 and 127,631.89 is: 176,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,055.31 : 324,382.89 = 127,631.89 : x
  2. Step 2: Convert to fraction form
    235,055.31/324,382.89 = 127,631.89/x
  3. Step 3: Cross multiply
    235,055.31x = 324,382.89 × 127,631.89
  4. Step 4: Simplify right side
    235,055.31x = 41,401,601,334.36
  5. Step 5: Solve for x
    x = 41,401,601,334.36/235,055.31
  6. Step 6: Final answer
    x = 176,135.57

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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.