Home / 451,620.39-677,431.76-152,311.21

Finding the Fourth Proportional to 451,620.39, 677,431.76 and 152,311.21

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Solution

The fourth proportional to 451,620.39, 677,431.76 and 152,311.21 is: 228,467.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,620.39 : 677,431.76 = 152,311.21 : x
  2. Step 2: Convert to fraction form
    451,620.39/677,431.76 = 152,311.21/x
  3. Step 3: Cross multiply
    451,620.39x = 677,431.76 × 152,311.21
  4. Step 4: Simplify right side
    451,620.39x = 103,180,450,508.17
  5. Step 5: Solve for x
    x = 103,180,450,508.17/451,620.39
  6. Step 6: Final answer
    x = 228,467.21

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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.