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Finding the Fourth Proportional to 245,787.20, 345,035.20 and 245,787.20

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Solution

The fourth proportional to 245,787.20, 345,035.20 and 245,787.20 is: 345,035.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,787.20 : 345,035.20 = 245,787.20 : x
  2. Step 2: Convert to fraction form
    245,787.20/345,035.20 = 245,787.20/x
  3. Step 3: Cross multiply
    245,787.20x = 345,035.20 × 245,787.20
  4. Step 4: Simplify right side
    245,787.20x = 84,805,235,709.44
  5. Step 5: Solve for x
    x = 84,805,235,709.44/245,787.20
  6. Step 6: Final answer
    x = 345,035.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.