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Finding the Fourth Proportional to 451,863.36, 677,380.32 and 156,168

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Solution

The fourth proportional to 451,863.36, 677,380.32 and 156,168 is: 234,108.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,863.36 : 677,380.32 = 156,168 : x
  2. Step 2: Convert to fraction form
    451,863.36/677,380.32 = 156,168/x
  3. Step 3: Cross multiply
    451,863.36x = 677,380.32 × 156,168
  4. Step 4: Simplify right side
    451,863.36x = 105,785,129,813.76
  5. Step 5: Solve for x
    x = 105,785,129,813.76/451,863.36
  6. Step 6: Final answer
    x = 234,108.67

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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.