Home / 287,647.02-396,942.06-166,793.40

Finding the Fourth Proportional to 287,647.02, 396,942.06 and 166,793.40

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Solution

The fourth proportional to 287,647.02, 396,942.06 and 166,793.40 is: 230,168.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,647.02 : 396,942.06 = 166,793.40 : x
  2. Step 2: Convert to fraction form
    287,647.02/396,942.06 = 166,793.40/x
  3. Step 3: Cross multiply
    287,647.02x = 396,942.06 × 166,793.40
  4. Step 4: Simplify right side
    287,647.02x = 66,207,315,790.40
  5. Step 5: Solve for x
    x = 66,207,315,790.40/287,647.02
  6. Step 6: Final answer
    x = 230,168.61

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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.