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Finding the Fourth Proportional to 208,648.44, 287,930.97 and 118,001.34

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Solution

The fourth proportional to 208,648.44, 287,930.97 and 118,001.34 is: 162,839.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,648.44 : 287,930.97 = 118,001.34 : x
  2. Step 2: Convert to fraction form
    208,648.44/287,930.97 = 118,001.34/x
  3. Step 3: Cross multiply
    208,648.44x = 287,930.97 × 118,001.34
  4. Step 4: Simplify right side
    208,648.44x = 33,976,240,287.50
  5. Step 5: Solve for x
    x = 33,976,240,287.50/208,648.44
  6. Step 6: Final answer
    x = 162,839.66

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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.