Home / 287,435.12-396,664.60-164,947.46

Finding the Fourth Proportional to 287,435.12, 396,664.60 and 164,947.46

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Solution

The fourth proportional to 287,435.12, 396,664.60 and 164,947.46 is: 227,629.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,435.12 : 396,664.60 = 164,947.46 : x
  2. Step 2: Convert to fraction form
    287,435.12/396,664.60 = 164,947.46/x
  3. Step 3: Cross multiply
    287,435.12x = 396,664.60 × 164,947.46
  4. Step 4: Simplify right side
    287,435.12x = 65,428,818,241.92
  5. Step 5: Solve for x
    x = 65,428,818,241.92/287,435.12
  6. Step 6: Final answer
    x = 227,629.87

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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.