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Finding the Fourth Proportional to 383,135.32, 574,750.70 and 130,396.39

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Solution

The fourth proportional to 383,135.32, 574,750.70 and 130,396.39 is: 195,610.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,135.32 : 574,750.70 = 130,396.39 : x
  2. Step 2: Convert to fraction form
    383,135.32/574,750.70 = 130,396.39/x
  3. Step 3: Cross multiply
    383,135.32x = 574,750.70 × 130,396.39
  4. Step 4: Simplify right side
    383,135.32x = 74,945,414,341.11
  5. Step 5: Solve for x
    x = 74,945,414,341.11/383,135.32
  6. Step 6: Final answer
    x = 195,610.82

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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.