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Finding the Fourth Proportional to 253,318, 380,086.44 and 134,955.76

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Solution

The fourth proportional to 253,318, 380,086.44 and 134,955.76 is: 202,491.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,318 : 380,086.44 = 134,955.76 : x
  2. Step 2: Convert to fraction form
    253,318/380,086.44 = 134,955.76/x
  3. Step 3: Cross multiply
    253,318x = 380,086.44 × 134,955.76
  4. Step 4: Simplify right side
    253,318x = 51,294,854,375.89
  5. Step 5: Solve for x
    x = 51,294,854,375.89/253,318
  6. Step 6: Final answer
    x = 202,491.94

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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.