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Finding the Fourth Proportional to 208,392.82, 287,476.39 and 131,782.82

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Solution

The fourth proportional to 208,392.82, 287,476.39 and 131,782.82 is: 181,793.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,392.82 : 287,476.39 = 131,782.82 : x
  2. Step 2: Convert to fraction form
    208,392.82/287,476.39 = 131,782.82/x
  3. Step 3: Cross multiply
    208,392.82x = 287,476.39 × 131,782.82
  4. Step 4: Simplify right side
    208,392.82x = 37,884,448,084.97
  5. Step 5: Solve for x
    x = 37,884,448,084.97/208,392.82
  6. Step 6: Final answer
    x = 181,793.44

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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.