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Finding the Fourth Proportional to 297,107.07, 445,700.30 and 86,741.97

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Solution

The fourth proportional to 297,107.07, 445,700.30 and 86,741.97 is: 130,124.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,107.07 : 445,700.30 = 86,741.97 : x
  2. Step 2: Convert to fraction form
    297,107.07/445,700.30 = 86,741.97/x
  3. Step 3: Cross multiply
    297,107.07x = 445,700.30 × 86,741.97
  4. Step 4: Simplify right side
    297,107.07x = 38,660,921,617.88
  5. Step 5: Solve for x
    x = 38,660,921,617.88/297,107.07
  6. Step 6: Final answer
    x = 130,124.54

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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.