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Finding the Fourth Proportional to 235,009.29, 324,278.60 and 134,387.85

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Solution

The fourth proportional to 235,009.29, 324,278.60 and 134,387.85 is: 185,435.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,009.29 : 324,278.60 = 134,387.85 : x
  2. Step 2: Convert to fraction form
    235,009.29/324,278.60 = 134,387.85/x
  3. Step 3: Cross multiply
    235,009.29x = 324,278.60 × 134,387.85
  4. Step 4: Simplify right side
    235,009.29x = 43,579,102,708.34
  5. Step 5: Solve for x
    x = 43,579,102,708.34/235,009.29
  6. Step 6: Final answer
    x = 185,435.66

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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.