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Finding the Fourth Proportional to 268,692.90, 370,849.23 and 154,048.56

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Solution

The fourth proportional to 268,692.90, 370,849.23 and 154,048.56 is: 212,617.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,692.90 : 370,849.23 = 154,048.56 : x
  2. Step 2: Convert to fraction form
    268,692.90/370,849.23 = 154,048.56/x
  3. Step 3: Cross multiply
    268,692.90x = 370,849.23 × 154,048.56
  4. Step 4: Simplify right side
    268,692.90x = 57,128,789,858.61
  5. Step 5: Solve for x
    x = 57,128,789,858.61/268,692.90
  6. Step 6: Final answer
    x = 212,617.42

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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.