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Finding the Fourth Proportional to 307,591.97, 424,506.22 and 186,705.54

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Solution

The fourth proportional to 307,591.97, 424,506.22 and 186,705.54 is: 257,671.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,591.97 : 424,506.22 = 186,705.54 : x
  2. Step 2: Convert to fraction form
    307,591.97/424,506.22 = 186,705.54/x
  3. Step 3: Cross multiply
    307,591.97x = 424,506.22 × 186,705.54
  4. Step 4: Simplify right side
    307,591.97x = 79,257,662,571.70
  5. Step 5: Solve for x
    x = 79,257,662,571.70/307,591.97
  6. Step 6: Final answer
    x = 257,671.43

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1.5x scale

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.