Home / 287,046.24-396,120.96-159,719.64

Finding the Fourth Proportional to 287,046.24, 396,120.96 and 159,719.64

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Solution

The fourth proportional to 287,046.24, 396,120.96 and 159,719.64 is: 220,411.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,046.24 : 396,120.96 = 159,719.64 : x
  2. Step 2: Convert to fraction form
    287,046.24/396,120.96 = 159,719.64/x
  3. Step 3: Cross multiply
    287,046.24x = 396,120.96 × 159,719.64
  4. Step 4: Simplify right side
    287,046.24x = 63,268,297,127.65
  5. Step 5: Solve for x
    x = 63,268,297,127.65/287,046.24
  6. Step 6: Final answer
    x = 220,411.52

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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.