Home / 330,318.12-494,682.10-187,814.78

Finding the Fourth Proportional to 330,318.12, 494,682.10 and 187,814.78

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Solution

The fourth proportional to 330,318.12, 494,682.10 and 187,814.78 is: 281,270.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,318.12 : 494,682.10 = 187,814.78 : x
  2. Step 2: Convert to fraction form
    330,318.12/494,682.10 = 187,814.78/x
  3. Step 3: Cross multiply
    330,318.12x = 494,682.10 × 187,814.78
  4. Step 4: Simplify right side
    330,318.12x = 92,908,609,781.44
  5. Step 5: Solve for x
    x = 92,908,609,781.44/330,318.12
  6. Step 6: Final answer
    x = 281,270.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.