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Finding the Fourth Proportional to 253,869.70, 350,378.78 and 162,028.63

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Solution

The fourth proportional to 253,869.70, 350,378.78 and 162,028.63 is: 223,624.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,869.70 : 350,378.78 = 162,028.63 : x
  2. Step 2: Convert to fraction form
    253,869.70/350,378.78 = 162,028.63/x
  3. Step 3: Cross multiply
    253,869.70x = 350,378.78 × 162,028.63
  4. Step 4: Simplify right side
    253,869.70x = 56,771,394,462.70
  5. Step 5: Solve for x
    x = 56,771,394,462.70/253,869.70
  6. Step 6: Final answer
    x = 223,624.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.