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Finding the Fourth Proportional to 205,761.79, 308,672.27 and 63,618.15

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Solution

The fourth proportional to 205,761.79, 308,672.27 and 63,618.15 is: 95,436.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,761.79 : 308,672.27 = 63,618.15 : x
  2. Step 2: Convert to fraction form
    205,761.79/308,672.27 = 63,618.15/x
  3. Step 3: Cross multiply
    205,761.79x = 308,672.27 × 63,618.15
  4. Step 4: Simplify right side
    205,761.79x = 19,637,158,804.63
  5. Step 5: Solve for x
    x = 19,637,158,804.63/205,761.79
  6. Step 6: Final answer
    x = 95,436.37

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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.