Home / 287,619.96-396,916.88-166,832.76

Finding the Fourth Proportional to 287,619.96, 396,916.88 and 166,832.76

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Solution

The fourth proportional to 287,619.96, 396,916.88 and 166,832.76 is: 230,229.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,619.96 : 396,916.88 = 166,832.76 : x
  2. Step 2: Convert to fraction form
    287,619.96/396,916.88 = 166,832.76/x
  3. Step 3: Cross multiply
    287,619.96x = 396,916.88 × 166,832.76
  4. Step 4: Simplify right side
    287,619.96x = 66,218,738,580.99
  5. Step 5: Solve for x
    x = 66,218,738,580.99/287,619.96
  6. Step 6: Final answer
    x = 230,229.98

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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.