Home / 318,744.81-439,869.15-191,422.53

Finding the Fourth Proportional to 318,744.81, 439,869.15 and 191,422.53

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Solution

The fourth proportional to 318,744.81, 439,869.15 and 191,422.53 is: 264,163.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,744.81 : 439,869.15 = 191,422.53 : x
  2. Step 2: Convert to fraction form
    318,744.81/439,869.15 = 191,422.53/x
  3. Step 3: Cross multiply
    318,744.81x = 439,869.15 × 191,422.53
  4. Step 4: Simplify right side
    318,744.81x = 84,200,865,561.95
  5. Step 5: Solve for x
    x = 84,200,865,561.95/318,744.81
  6. Step 6: Final answer
    x = 264,163.88

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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.