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Finding the Fourth Proportional to 208,185.67, 287,279.49 and 117,563.68

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Solution

The fourth proportional to 208,185.67, 287,279.49 and 117,563.68 is: 162,228.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,185.67 : 287,279.49 = 117,563.68 : x
  2. Step 2: Convert to fraction form
    208,185.67/287,279.49 = 117,563.68/x
  3. Step 3: Cross multiply
    208,185.67x = 287,279.49 × 117,563.68
  4. Step 4: Simplify right side
    208,185.67x = 33,773,634,032.92
  5. Step 5: Solve for x
    x = 33,773,634,032.92/208,185.67
  6. Step 6: Final answer
    x = 162,228.43

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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.