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Finding the Fourth Proportional to 253,104.69, 349,372.44 and 145,717.53

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Solution

The fourth proportional to 253,104.69, 349,372.44 and 145,717.53 is: 201,140.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,104.69 : 349,372.44 = 145,717.53 : x
  2. Step 2: Convert to fraction form
    253,104.69/349,372.44 = 145,717.53/x
  3. Step 3: Cross multiply
    253,104.69x = 349,372.44 × 145,717.53
  4. Step 4: Simplify right side
    253,104.69x = 50,909,689,006.87
  5. Step 5: Solve for x
    x = 50,909,689,006.87/253,104.69
  6. Step 6: Final answer
    x = 201,140.84

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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.