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Finding the Fourth Proportional to 383,991.60, 574,871.87 and 223,578.18

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Solution

The fourth proportional to 383,991.60, 574,871.87 and 223,578.18 is: 334,717.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,991.60 : 574,871.87 = 223,578.18 : x
  2. Step 2: Convert to fraction form
    383,991.60/574,871.87 = 223,578.18/x
  3. Step 3: Cross multiply
    383,991.60x = 574,871.87 × 223,578.18
  4. Step 4: Simplify right side
    383,991.60x = 128,528,805,309.91
  5. Step 5: Solve for x
    x = 128,528,805,309.91/383,991.60
  6. Step 6: Final answer
    x = 334,717.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.