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Finding the Fourth Proportional to 239,692.48, 330,795.84 and 139,084

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Solution

The fourth proportional to 239,692.48, 330,795.84 and 139,084 is: 191,947.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,692.48 : 330,795.84 = 139,084 : x
  2. Step 2: Convert to fraction form
    239,692.48/330,795.84 = 139,084/x
  3. Step 3: Cross multiply
    239,692.48x = 330,795.84 × 139,084
  4. Step 4: Simplify right side
    239,692.48x = 46,008,408,610.56
  5. Step 5: Solve for x
    x = 46,008,408,610.56/239,692.48
  6. Step 6: Final answer
    x = 191,947.65

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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.