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Finding the Fourth Proportional to 297,455.42, 446,346.84 and 128,977.04

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Solution

The fourth proportional to 297,455.42, 446,346.84 and 128,977.04 is: 193,536.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,455.42 : 446,346.84 = 128,977.04 : x
  2. Step 2: Convert to fraction form
    297,455.42/446,346.84 = 128,977.04/x
  3. Step 3: Cross multiply
    297,455.42x = 446,346.84 × 128,977.04
  4. Step 4: Simplify right side
    297,455.42x = 57,568,494,236.55
  5. Step 5: Solve for x
    x = 57,568,494,236.55/297,455.42
  6. Step 6: Final answer
    x = 193,536.54

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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.