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Finding the Fourth Proportional to 254,680.95, 382,021 and 67,692.45

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Solution

The fourth proportional to 254,680.95, 382,021 and 67,692.45 is: 101,538.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,680.95 : 382,021 = 67,692.45 : x
  2. Step 2: Convert to fraction form
    254,680.95/382,021 = 67,692.45/x
  3. Step 3: Cross multiply
    254,680.95x = 382,021 × 67,692.45
  4. Step 4: Simplify right side
    254,680.95x = 25,859,937,441.45
  5. Step 5: Solve for x
    x = 25,859,937,441.45/254,680.95
  6. Step 6: Final answer
    x = 101,538.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.