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Finding the Fourth Proportional to 297,474.40, 444,915.60 and 266,111.20

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Solution

The fourth proportional to 297,474.40, 444,915.60 and 266,111.20 is: 398,007.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,474.40 : 444,915.60 = 266,111.20 : x
  2. Step 2: Convert to fraction form
    297,474.40/444,915.60 = 266,111.20/x
  3. Step 3: Cross multiply
    297,474.40x = 444,915.60 × 266,111.20
  4. Step 4: Simplify right side
    297,474.40x = 118,397,024,214.72
  5. Step 5: Solve for x
    x = 118,397,024,214.72/297,474.40
  6. Step 6: Final answer
    x = 398,007.44

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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.