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Finding the Fourth Proportional to 235,144, 324,501.12 and 127,716.12

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Solution

The fourth proportional to 235,144, 324,501.12 and 127,716.12 is: 176,249.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,144 : 324,501.12 = 127,716.12 : x
  2. Step 2: Convert to fraction form
    235,144/324,501.12 = 127,716.12/x
  3. Step 3: Cross multiply
    235,144x = 324,501.12 × 127,716.12
  4. Step 4: Simplify right side
    235,144x = 41,444,023,982.05
  5. Step 5: Solve for x
    x = 41,444,023,982.05/235,144
  6. Step 6: Final answer
    x = 176,249.55

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1.5x scale

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.