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Finding the Fourth Proportional to 208,267.58, 287,408.84 and 112,773.98

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Solution

The fourth proportional to 208,267.58, 287,408.84 and 112,773.98 is: 155,627.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,267.58 : 287,408.84 = 112,773.98 : x
  2. Step 2: Convert to fraction form
    208,267.58/287,408.84 = 112,773.98/x
  3. Step 3: Cross multiply
    208,267.58x = 287,408.84 × 112,773.98
  4. Step 4: Simplify right side
    208,267.58x = 32,412,238,773.98
  5. Step 5: Solve for x
    x = 32,412,238,773.98/208,267.58
  6. Step 6: Final answer
    x = 155,627.86

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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.