Home / 443,397.12-611,936.82-252,379.68

Finding the Fourth Proportional to 443,397.12, 611,936.82 and 252,379.68

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Solution

The fourth proportional to 443,397.12, 611,936.82 and 252,379.68 is: 348,311.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,397.12 : 611,936.82 = 252,379.68 : x
  2. Step 2: Convert to fraction form
    443,397.12/611,936.82 = 252,379.68/x
  3. Step 3: Cross multiply
    443,397.12x = 611,936.82 × 252,379.68
  4. Step 4: Simplify right side
    443,397.12x = 154,440,418,811.82
  5. Step 5: Solve for x
    x = 154,440,418,811.82/443,397.12
  6. Step 6: Final answer
    x = 348,311.73

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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.