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Finding the Fourth Proportional to 218,599.65, 303,043.23 and 206,625.87

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Solution

The fourth proportional to 218,599.65, 303,043.23 and 206,625.87 is: 286,444.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,599.65 : 303,043.23 = 206,625.87 : x
  2. Step 2: Convert to fraction form
    218,599.65/303,043.23 = 206,625.87/x
  3. Step 3: Cross multiply
    218,599.65x = 303,043.23 × 206,625.87
  4. Step 4: Simplify right side
    218,599.65x = 62,616,571,046.36
  5. Step 5: Solve for x
    x = 62,616,571,046.36/218,599.65
  6. Step 6: Final answer
    x = 286,444.06

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.