Home / 455,138.40-682,795.26-174,633.78

Finding the Fourth Proportional to 455,138.40, 682,795.26 and 174,633.78

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Solution

The fourth proportional to 455,138.40, 682,795.26 and 174,633.78 is: 261,984.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,138.40 : 682,795.26 = 174,633.78 : x
  2. Step 2: Convert to fraction form
    455,138.40/682,795.26 = 174,633.78/x
  3. Step 3: Cross multiply
    455,138.40x = 682,795.26 × 174,633.78
  4. Step 4: Simplify right side
    455,138.40x = 119,239,117,219.88
  5. Step 5: Solve for x
    x = 119,239,117,219.88/455,138.40
  6. Step 6: Final answer
    x = 261,984.30

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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.