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Finding the Fourth Proportional to 208,675.52, 287,972.23 and 118,029.53

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Solution

The fourth proportional to 208,675.52, 287,972.23 and 118,029.53 is: 162,880.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,675.52 : 287,972.23 = 118,029.53 : x
  2. Step 2: Convert to fraction form
    208,675.52/287,972.23 = 118,029.53/x
  3. Step 3: Cross multiply
    208,675.52x = 287,972.23 × 118,029.53
  4. Step 4: Simplify right side
    208,675.52x = 33,989,226,796.19
  5. Step 5: Solve for x
    x = 33,989,226,796.19/208,675.52
  6. Step 6: Final answer
    x = 162,880.76

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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.