Home / 318,847.04-440,039.99-238,134.43

Finding the Fourth Proportional to 318,847.04, 440,039.99 and 238,134.43

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Solution

The fourth proportional to 318,847.04, 440,039.99 and 238,134.43 is: 328,648.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,847.04 : 440,039.99 = 238,134.43 : x
  2. Step 2: Convert to fraction form
    318,847.04/440,039.99 = 238,134.43/x
  3. Step 3: Cross multiply
    318,847.04x = 440,039.99 × 238,134.43
  4. Step 4: Simplify right side
    318,847.04x = 104,788,672,700.62
  5. Step 5: Solve for x
    x = 104,788,672,700.62/318,847.04
  6. Step 6: Final answer
    x = 328,648.73

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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.