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Finding the Fourth Proportional to 297,325.70, 446,056.65 and 128,874.30

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Solution

The fourth proportional to 297,325.70, 446,056.65 and 128,874.30 is: 193,340.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,325.70 : 446,056.65 = 128,874.30 : x
  2. Step 2: Convert to fraction form
    297,325.70/446,056.65 = 128,874.30/x
  3. Step 3: Cross multiply
    297,325.70x = 446,056.65 × 128,874.30
  4. Step 4: Simplify right side
    297,325.70x = 57,485,238,529.10
  5. Step 5: Solve for x
    x = 57,485,238,529.10/297,325.70
  6. Step 6: Final answer
    x = 193,340.97

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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.