Home / 455,243.90-682,865.85-218,464.70

Finding the Fourth Proportional to 455,243.90, 682,865.85 and 218,464.70

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Solution

The fourth proportional to 455,243.90, 682,865.85 and 218,464.70 is: 327,697.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,243.90 : 682,865.85 = 218,464.70 : x
  2. Step 2: Convert to fraction form
    455,243.90/682,865.85 = 218,464.70/x
  3. Step 3: Cross multiply
    455,243.90x = 682,865.85 × 218,464.70
  4. Step 4: Simplify right side
    455,243.90x = 149,182,083,060.50
  5. Step 5: Solve for x
    x = 149,182,083,060.50/455,243.90
  6. Step 6: Final answer
    x = 327,697.05

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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.