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Finding the Fourth Proportional to 451,411.50, 622,947.96 and 250,207.50

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Solution

The fourth proportional to 451,411.50, 622,947.96 and 250,207.50 is: 345,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,411.50 : 622,947.96 = 250,207.50 : x
  2. Step 2: Convert to fraction form
    451,411.50/622,947.96 = 250,207.50/x
  3. Step 3: Cross multiply
    451,411.50x = 622,947.96 × 250,207.50
  4. Step 4: Simplify right side
    451,411.50x = 155,866,251,701.70
  5. Step 5: Solve for x
    x = 155,866,251,701.70/451,411.50
  6. Step 6: Final answer
    x = 345,286.40

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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.