Home / 287,628.88-396,941.37-160,305.38

Finding the Fourth Proportional to 287,628.88, 396,941.37 and 160,305.38

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Solution

The fourth proportional to 287,628.88, 396,941.37 and 160,305.38 is: 221,228.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,628.88 : 396,941.37 = 160,305.38 : x
  2. Step 2: Convert to fraction form
    287,628.88/396,941.37 = 160,305.38/x
  3. Step 3: Cross multiply
    287,628.88x = 396,941.37 × 160,305.38
  4. Step 4: Simplify right side
    287,628.88x = 63,631,837,155.57
  5. Step 5: Solve for x
    x = 63,631,837,155.57/287,628.88
  6. Step 6: Final answer
    x = 221,228.96

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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.