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Finding the Fourth Proportional to 269,045.25, 371,424.93 and 208,479.93

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Solution

The fourth proportional to 269,045.25, 371,424.93 and 208,479.93 is: 287,812.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,045.25 : 371,424.93 = 208,479.93 : x
  2. Step 2: Convert to fraction form
    269,045.25/371,424.93 = 208,479.93/x
  3. Step 3: Cross multiply
    269,045.25x = 371,424.93 × 208,479.93
  4. Step 4: Simplify right side
    269,045.25x = 77,434,640,507.13
  5. Step 5: Solve for x
    x = 77,434,640,507.13/269,045.25
  6. Step 6: Final answer
    x = 287,812.71

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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.