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Finding the Fourth Proportional to 235,316.16, 324,764.64 and 134,712

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Solution

The fourth proportional to 235,316.16, 324,764.64 and 134,712 is: 185,918.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,316.16 : 324,764.64 = 134,712 : x
  2. Step 2: Convert to fraction form
    235,316.16/324,764.64 = 134,712/x
  3. Step 3: Cross multiply
    235,316.16x = 324,764.64 × 134,712
  4. Step 4: Simplify right side
    235,316.16x = 43,749,694,183.68
  5. Step 5: Solve for x
    x = 43,749,694,183.68/235,316.16
  6. Step 6: Final answer
    x = 185,918.78

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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.