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Finding the Fourth Proportional to 383,696.70, 575,597.52 and 130,909.32

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Solution

The fourth proportional to 383,696.70, 575,597.52 and 130,909.32 is: 196,381.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,696.70 : 575,597.52 = 130,909.32 : x
  2. Step 2: Convert to fraction form
    383,696.70/575,597.52 = 130,909.32/x
  3. Step 3: Cross multiply
    383,696.70x = 575,597.52 × 130,909.32
  4. Step 4: Simplify right side
    383,696.70x = 75,351,079,936.89
  5. Step 5: Solve for x
    x = 75,351,079,936.89/383,696.70
  6. Step 6: Final answer
    x = 196,381.88

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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.