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Finding the Fourth Proportional to 164,383.69, 246,201.85 and 128,622.15

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Solution

The fourth proportional to 164,383.69, 246,201.85 and 128,622.15 is: 192,640.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,383.69 : 246,201.85 = 128,622.15 : x
  2. Step 2: Convert to fraction form
    164,383.69/246,201.85 = 128,622.15/x
  3. Step 3: Cross multiply
    164,383.69x = 246,201.85 × 128,622.15
  4. Step 4: Simplify right side
    164,383.69x = 31,667,011,280.98
  5. Step 5: Solve for x
    x = 31,667,011,280.98/164,383.69
  6. Step 6: Final answer
    x = 192,640.83

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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.