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Finding the Fourth Proportional to 208,709.26, 288,018.87 and 118,063.29

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Solution

The fourth proportional to 208,709.26, 288,018.87 and 118,063.29 is: 162,927.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,709.26 : 288,018.87 = 118,063.29 : x
  2. Step 2: Convert to fraction form
    208,709.26/288,018.87 = 118,063.29/x
  3. Step 3: Cross multiply
    208,709.26x = 288,018.87 × 118,063.29
  4. Step 4: Simplify right side
    208,709.26x = 34,004,456,897.09
  5. Step 5: Solve for x
    x = 34,004,456,897.09/208,709.26
  6. Step 6: Final answer
    x = 162,927.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.