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Finding the Fourth Proportional to 643,503.28, 965,509.16 and 244,250.03

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Solution

The fourth proportional to 643,503.28, 965,509.16 and 244,250.03 is: 366,471.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,503.28 : 965,509.16 = 244,250.03 : x
  2. Step 2: Convert to fraction form
    643,503.28/965,509.16 = 244,250.03/x
  3. Step 3: Cross multiply
    643,503.28x = 965,509.16 × 244,250.03
  4. Step 4: Simplify right side
    643,503.28x = 235,825,641,295.28
  5. Step 5: Solve for x
    x = 235,825,641,295.28/643,503.28
  6. Step 6: Final answer
    x = 366,471.55

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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.