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Finding the Fourth Proportional to 287,249.92, 396,357.60 and 159,922.24

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Solution

The fourth proportional to 287,249.92, 396,357.60 and 159,922.24 is: 220,666.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,249.92 : 396,357.60 = 159,922.24 : x
  2. Step 2: Convert to fraction form
    287,249.92/396,357.60 = 159,922.24/x
  3. Step 3: Cross multiply
    287,249.92x = 396,357.60 × 159,922.24
  4. Step 4: Simplify right side
    287,249.92x = 63,386,395,233.02
  5. Step 5: Solve for x
    x = 63,386,395,233.02/287,249.92
  6. Step 6: Final answer
    x = 220,666.36

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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.