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Finding the Fourth Proportional to 235,065.70, 324,389.64 and 127,634.86

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Solution

The fourth proportional to 235,065.70, 324,389.64 and 127,634.86 is: 176,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,065.70 : 324,389.64 = 127,634.86 : x
  2. Step 2: Convert to fraction form
    235,065.70/324,389.64 = 127,634.86/x
  3. Step 3: Cross multiply
    235,065.70x = 324,389.64 × 127,634.86
  4. Step 4: Simplify right side
    235,065.70x = 41,403,426,286.85
  5. Step 5: Solve for x
    x = 41,403,426,286.85/235,065.70
  6. Step 6: Final answer
    x = 176,135.55

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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.