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Finding the Fourth Proportional to 297,450.40, 444,879.60 and 266,087.20

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Solution

The fourth proportional to 297,450.40, 444,879.60 and 266,087.20 is: 397,971.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,450.40 : 444,879.60 = 266,087.20 : x
  2. Step 2: Convert to fraction form
    297,450.40/444,879.60 = 266,087.20/x
  3. Step 3: Cross multiply
    297,450.40x = 444,879.60 × 266,087.20
  4. Step 4: Simplify right side
    297,450.40x = 118,376,767,101.12
  5. Step 5: Solve for x
    x = 118,376,767,101.12/297,450.40
  6. Step 6: Final answer
    x = 397,971.45

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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.