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Finding the Fourth Proportional to 297,072.80, 445,609.20 and 294,448.40

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Solution

The fourth proportional to 297,072.80, 445,609.20 and 294,448.40 is: 441,672.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,072.80 : 445,609.20 = 294,448.40 : x
  2. Step 2: Convert to fraction form
    297,072.80/445,609.20 = 294,448.40/x
  3. Step 3: Cross multiply
    297,072.80x = 445,609.20 × 294,448.40
  4. Step 4: Simplify right side
    297,072.80x = 131,208,915,965.28
  5. Step 5: Solve for x
    x = 131,208,915,965.28/297,072.80
  6. Step 6: Final answer
    x = 441,672.60

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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.