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Finding the Fourth Proportional to 208,696.98, 288,007 and 118,048.52

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Solution

The fourth proportional to 208,696.98, 288,007 and 118,048.52 is: 162,909.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,696.98 : 288,007 = 118,048.52 : x
  2. Step 2: Convert to fraction form
    208,696.98/288,007 = 118,048.52/x
  3. Step 3: Cross multiply
    208,696.98x = 288,007 × 118,048.52
  4. Step 4: Simplify right side
    208,696.98x = 33,998,800,099.64
  5. Step 5: Solve for x
    x = 33,998,800,099.64/208,696.98
  6. Step 6: Final answer
    x = 162,909.88

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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.