Home / 287,324.07-396,507.21-166,535.42

Finding the Fourth Proportional to 287,324.07, 396,507.21 and 166,535.42

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Solution

The fourth proportional to 287,324.07, 396,507.21 and 166,535.42 is: 229,818.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,324.07 : 396,507.21 = 166,535.42 : x
  2. Step 2: Convert to fraction form
    287,324.07/396,507.21 = 166,535.42/x
  3. Step 3: Cross multiply
    287,324.07x = 396,507.21 × 166,535.42
  4. Step 4: Simplify right side
    287,324.07x = 66,032,491,935.17
  5. Step 5: Solve for x
    x = 66,032,491,935.17/287,324.07
  6. Step 6: Final answer
    x = 229,818.87

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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.