Home / 331,049.04-456,858-187,815.12

Finding the Fourth Proportional to 331,049.04, 456,858 and 187,815.12

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Solution

The fourth proportional to 331,049.04, 456,858 and 187,815.12 is: 259,190.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,049.04 : 456,858 = 187,815.12 : x
  2. Step 2: Convert to fraction form
    331,049.04/456,858 = 187,815.12/x
  3. Step 3: Cross multiply
    331,049.04x = 456,858 × 187,815.12
  4. Step 4: Simplify right side
    331,049.04x = 85,804,840,092.96
  5. Step 5: Solve for x
    x = 85,804,840,092.96/331,049.04
  6. Step 6: Final answer
    x = 259,190.72

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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.