Home / 287,425.10-396,658.88-160,100.75

Finding the Fourth Proportional to 287,425.10, 396,658.88 and 160,100.75

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Solution

The fourth proportional to 287,425.10, 396,658.88 and 160,100.75 is: 220,945.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,425.10 : 396,658.88 = 160,100.75 : x
  2. Step 2: Convert to fraction form
    287,425.10/396,658.88 = 160,100.75/x
  3. Step 3: Cross multiply
    287,425.10x = 396,658.88 × 160,100.75
  4. Step 4: Simplify right side
    287,425.10x = 63,505,381,398.36
  5. Step 5: Solve for x
    x = 63,505,381,398.36/287,425.10
  6. Step 6: Final answer
    x = 220,945.85

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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.