Home / 318,176.33-439,057.31-187,333.28

Finding the Fourth Proportional to 318,176.33, 439,057.31 and 187,333.28

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Solution

The fourth proportional to 318,176.33, 439,057.31 and 187,333.28 is: 258,504.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,176.33 : 439,057.31 = 187,333.28 : x
  2. Step 2: Convert to fraction form
    318,176.33/439,057.31 = 187,333.28/x
  3. Step 3: Cross multiply
    318,176.33x = 439,057.31 × 187,333.28
  4. Step 4: Simplify right side
    318,176.33x = 82,250,044,504.79
  5. Step 5: Solve for x
    x = 82,250,044,504.79/318,176.33
  6. Step 6: Final answer
    x = 258,504.60

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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.