Home / 287,619.45-396,916.16-166,832.25

Finding the Fourth Proportional to 287,619.45, 396,916.16 and 166,832.25

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Solution

The fourth proportional to 287,619.45, 396,916.16 and 166,832.25 is: 230,229.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,619.45 : 396,916.16 = 166,832.25 : x
  2. Step 2: Convert to fraction form
    287,619.45/396,916.16 = 166,832.25/x
  3. Step 3: Cross multiply
    287,619.45x = 396,916.16 × 166,832.25
  4. Step 4: Simplify right side
    287,619.45x = 66,218,416,034.16
  5. Step 5: Solve for x
    x = 66,218,416,034.16/287,619.45
  6. Step 6: Final answer
    x = 230,229.27

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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.