Home / 287,627.88-396,939.99-160,304.38

Finding the Fourth Proportional to 287,627.88, 396,939.99 and 160,304.38

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Solution

The fourth proportional to 287,627.88, 396,939.99 and 160,304.38 is: 221,227.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,627.88 : 396,939.99 = 160,304.38 : x
  2. Step 2: Convert to fraction form
    287,627.88/396,939.99 = 160,304.38/x
  3. Step 3: Cross multiply
    287,627.88x = 396,939.99 × 160,304.38
  4. Step 4: Simplify right side
    287,627.88x = 63,631,218,889.19
  5. Step 5: Solve for x
    x = 63,631,218,889.19/287,627.88
  6. Step 6: Final answer
    x = 221,227.58

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1.5x scale

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.