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Finding the Fourth Proportional to 397,491.54, 548,488.60 and 268,710.14

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Solution

The fourth proportional to 397,491.54, 548,488.60 and 268,710.14 is: 370,786.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,491.54 : 548,488.60 = 268,710.14 : x
  2. Step 2: Convert to fraction form
    397,491.54/548,488.60 = 268,710.14/x
  3. Step 3: Cross multiply
    397,491.54x = 548,488.60 × 268,710.14
  4. Step 4: Simplify right side
    397,491.54x = 147,384,449,193.85
  5. Step 5: Solve for x
    x = 147,384,449,193.85/397,491.54
  6. Step 6: Final answer
    x = 370,786.38

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1.5x scale

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.