Home / 287,183.07-396,349.81-164,723.22

Finding the Fourth Proportional to 287,183.07, 396,349.81 and 164,723.22

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Solution

The fourth proportional to 287,183.07, 396,349.81 and 164,723.22 is: 227,339.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,183.07 : 396,349.81 = 164,723.22 : x
  2. Step 2: Convert to fraction form
    287,183.07/396,349.81 = 164,723.22/x
  3. Step 3: Cross multiply
    287,183.07x = 396,349.81 × 164,723.22
  4. Step 4: Simplify right side
    287,183.07x = 65,288,016,537.78
  5. Step 5: Solve for x
    x = 65,288,016,537.78/287,183.07
  6. Step 6: Final answer
    x = 227,339.36

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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.