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Finding the Fourth Proportional to 303,825.48, 419,006.76 and 253,006.49

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Solution

The fourth proportional to 303,825.48, 419,006.76 and 253,006.49 is: 348,922.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,825.48 : 419,006.76 = 253,006.49 : x
  2. Step 2: Convert to fraction form
    303,825.48/419,006.76 = 253,006.49/x
  3. Step 3: Cross multiply
    303,825.48x = 419,006.76 × 253,006.49
  4. Step 4: Simplify right side
    303,825.48x = 106,011,427,538.84
  5. Step 5: Solve for x
    x = 106,011,427,538.84/303,825.48
  6. Step 6: Final answer
    x = 348,922.11

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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.