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Finding the Fourth Proportional to 268,698.06, 400,676.52 and 266,299.65

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Solution

The fourth proportional to 268,698.06, 400,676.52 and 266,299.65 is: 397,100.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,698.06 : 400,676.52 = 266,299.65 : x
  2. Step 2: Convert to fraction form
    268,698.06/400,676.52 = 266,299.65/x
  3. Step 3: Cross multiply
    268,698.06x = 400,676.52 × 266,299.65
  4. Step 4: Simplify right side
    268,698.06x = 106,700,018,037.84
  5. Step 5: Solve for x
    x = 106,700,018,037.84/268,698.06
  6. Step 6: Final answer
    x = 397,100.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.