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Finding the Fourth Proportional to 297,310.96, 446,034.52 and 128,859.60

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Solution

The fourth proportional to 297,310.96, 446,034.52 and 128,859.60 is: 193,318.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,310.96 : 446,034.52 = 128,859.60 : x
  2. Step 2: Convert to fraction form
    297,310.96/446,034.52 = 128,859.60/x
  3. Step 3: Cross multiply
    297,310.96x = 446,034.52 × 128,859.60
  4. Step 4: Simplify right side
    297,310.96x = 57,475,829,833.39
  5. Step 5: Solve for x
    x = 57,475,829,833.39/297,310.96
  6. Step 6: Final answer
    x = 193,318.91

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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.