Home / 318,745.31-439,869.84-191,423.03

Finding the Fourth Proportional to 318,745.31, 439,869.84 and 191,423.03

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Solution

The fourth proportional to 318,745.31, 439,869.84 and 191,423.03 is: 264,164.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,745.31 : 439,869.84 = 191,423.03 : x
  2. Step 2: Convert to fraction form
    318,745.31/439,869.84 = 191,423.03/x
  3. Step 3: Cross multiply
    318,745.31x = 439,869.84 × 191,423.03
  4. Step 4: Simplify right side
    318,745.31x = 84,201,217,578.42
  5. Step 5: Solve for x
    x = 84,201,217,578.42/318,745.31
  6. Step 6: Final answer
    x = 264,164.57

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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.