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Finding the Fourth Proportional to 383,040.82, 574,670.84 and 130,376.98

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Solution

The fourth proportional to 383,040.82, 574,670.84 and 130,376.98 is: 195,602.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,040.82 : 574,670.84 = 130,376.98 : x
  2. Step 2: Convert to fraction form
    383,040.82/574,670.84 = 130,376.98/x
  3. Step 3: Cross multiply
    383,040.82x = 574,670.84 × 130,376.98
  4. Step 4: Simplify right side
    383,040.82x = 74,923,848,613.26
  5. Step 5: Solve for x
    x = 74,923,848,613.26/383,040.82
  6. Step 6: Final answer
    x = 195,602.78

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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.