Home / 310,811.78-428,919.64-174,845.84

Finding the Fourth Proportional to 310,811.78, 428,919.64 and 174,845.84

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Solution

The fourth proportional to 310,811.78, 428,919.64 and 174,845.84 is: 241,286.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,811.78 : 428,919.64 = 174,845.84 : x
  2. Step 2: Convert to fraction form
    310,811.78/428,919.64 = 174,845.84/x
  3. Step 3: Cross multiply
    310,811.78x = 428,919.64 × 174,845.84
  4. Step 4: Simplify right side
    310,811.78x = 74,994,813,150.09
  5. Step 5: Solve for x
    x = 74,994,813,150.09/310,811.78
  6. Step 6: Final answer
    x = 241,286.91

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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.