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Finding the Fourth Proportional to 297,235.40, 445,910.70 and 149,491.40

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Solution

The fourth proportional to 297,235.40, 445,910.70 and 149,491.40 is: 224,266.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,235.40 : 445,910.70 = 149,491.40 : x
  2. Step 2: Convert to fraction form
    297,235.40/445,910.70 = 149,491.40/x
  3. Step 3: Cross multiply
    297,235.40x = 445,910.70 × 149,491.40
  4. Step 4: Simplify right side
    297,235.40x = 66,659,814,817.98
  5. Step 5: Solve for x
    x = 66,659,814,817.98/297,235.40
  6. Step 6: Final answer
    x = 224,266.07

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1.5x scale

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.