Home / 330,219.88-455,705.22-187,007.83

Finding the Fourth Proportional to 330,219.88, 455,705.22 and 187,007.83

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Solution

The fourth proportional to 330,219.88, 455,705.22 and 187,007.83 is: 258,071.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,219.88 : 455,705.22 = 187,007.83 : x
  2. Step 2: Convert to fraction form
    330,219.88/455,705.22 = 187,007.83/x
  3. Step 3: Cross multiply
    330,219.88x = 455,705.22 × 187,007.83
  4. Step 4: Simplify right side
    330,219.88x = 85,220,444,311.87
  5. Step 5: Solve for x
    x = 85,220,444,311.87/330,219.88
  6. Step 6: Final answer
    x = 258,071.82

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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.