Home / 287,198.15-396,322.76-159,871.01

Finding the Fourth Proportional to 287,198.15, 396,322.76 and 159,871.01

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Solution

The fourth proportional to 287,198.15, 396,322.76 and 159,871.01 is: 220,616.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,198.15 : 396,322.76 = 159,871.01 : x
  2. Step 2: Convert to fraction form
    287,198.15/396,322.76 = 159,871.01/x
  3. Step 3: Cross multiply
    287,198.15x = 396,322.76 × 159,871.01
  4. Step 4: Simplify right side
    287,198.15x = 63,360,519,127.83
  5. Step 5: Solve for x
    x = 63,360,519,127.83/287,198.15
  6. Step 6: Final answer
    x = 220,616.04

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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.