Home / 287,621.96-396,919.64-166,834.76

Finding the Fourth Proportional to 287,621.96, 396,919.64 and 166,834.76

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Solution

The fourth proportional to 287,621.96, 396,919.64 and 166,834.76 is: 230,232.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,621.96 : 396,919.64 = 166,834.76 : x
  2. Step 2: Convert to fraction form
    287,621.96/396,919.64 = 166,834.76/x
  3. Step 3: Cross multiply
    287,621.96x = 396,919.64 × 166,834.76
  4. Step 4: Simplify right side
    287,621.96x = 66,219,992,878.69
  5. Step 5: Solve for x
    x = 66,219,992,878.69/287,621.96
  6. Step 6: Final answer
    x = 230,232.74

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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.