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Finding the Fourth Proportional to 383,818.60, 575,814.30 and 225,965.80

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Solution

The fourth proportional to 383,818.60, 575,814.30 and 225,965.80 is: 338,999.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,818.60 : 575,814.30 = 225,965.80 : x
  2. Step 2: Convert to fraction form
    383,818.60/575,814.30 = 225,965.80/x
  3. Step 3: Cross multiply
    383,818.60x = 575,814.30 × 225,965.80
  4. Step 4: Simplify right side
    383,818.60x = 130,114,338,950.94
  5. Step 5: Solve for x
    x = 130,114,338,950.94/383,818.60
  6. Step 6: Final answer
    x = 338,999.57

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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.