Home / 235,476.32-324,917.89-138,699.45

Finding the Fourth Proportional to 235,476.32, 324,917.89 and 138,699.45

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Solution

The fourth proportional to 235,476.32, 324,917.89 and 138,699.45 is: 191,382.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,476.32 : 324,917.89 = 138,699.45 : x
  2. Step 2: Convert to fraction form
    235,476.32/324,917.89 = 138,699.45/x
  3. Step 3: Cross multiply
    235,476.32x = 324,917.89 × 138,699.45
  4. Step 4: Simplify right side
    235,476.32x = 45,065,932,291.41
  5. Step 5: Solve for x
    x = 45,065,932,291.41/235,476.32
  6. Step 6: Final answer
    x = 191,382.02

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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.