Home / 287,675.62-396,997.57-160,337.54

Finding the Fourth Proportional to 287,675.62, 396,997.57 and 160,337.54

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Solution

The fourth proportional to 287,675.62, 396,997.57 and 160,337.54 is: 221,268.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,675.62 : 396,997.57 = 160,337.54 : x
  2. Step 2: Convert to fraction form
    287,675.62/396,997.57 = 160,337.54/x
  3. Step 3: Cross multiply
    287,675.62x = 396,997.57 × 160,337.54
  4. Step 4: Simplify right side
    287,675.62x = 63,653,614,952.69
  5. Step 5: Solve for x
    x = 63,653,614,952.69/287,675.62
  6. Step 6: Final answer
    x = 221,268.72

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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.