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Finding the Fourth Proportional to 449,148, 619,825.44 and 247,944

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Solution

The fourth proportional to 449,148, 619,825.44 and 247,944 is: 342,163.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,148 : 619,825.44 = 247,944 : x
  2. Step 2: Convert to fraction form
    449,148/619,825.44 = 247,944/x
  3. Step 3: Cross multiply
    449,148x = 619,825.44 × 247,944
  4. Step 4: Simplify right side
    449,148x = 153,681,998,895.36
  5. Step 5: Solve for x
    x = 153,681,998,895.36/449,148
  6. Step 6: Final answer
    x = 342,163.38

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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.