Home / 287,648.33-396,968.28-160,324.85

Finding the Fourth Proportional to 287,648.33, 396,968.28 and 160,324.85

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Solution

The fourth proportional to 287,648.33, 396,968.28 and 160,324.85 is: 221,255.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,648.33 : 396,968.28 = 160,324.85 : x
  2. Step 2: Convert to fraction form
    287,648.33/396,968.28 = 160,324.85/x
  3. Step 3: Cross multiply
    287,648.33x = 396,968.28 × 160,324.85
  4. Step 4: Simplify right side
    287,648.33x = 63,643,879,945.76
  5. Step 5: Solve for x
    x = 63,643,879,945.76/287,648.33
  6. Step 6: Final answer
    x = 221,255.86

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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.