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Finding the Fourth Proportional to 254,787.21, 382,189.46 and 67,798.89

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Solution

The fourth proportional to 254,787.21, 382,189.46 and 67,798.89 is: 101,700.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,787.21 : 382,189.46 = 67,798.89 : x
  2. Step 2: Convert to fraction form
    254,787.21/382,189.46 = 67,798.89/x
  3. Step 3: Cross multiply
    254,787.21x = 382,189.46 × 67,798.89
  4. Step 4: Simplify right side
    254,787.21x = 25,912,020,818.71
  5. Step 5: Solve for x
    x = 25,912,020,818.71/254,787.21
  6. Step 6: Final answer
    x = 101,700.63

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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.