Home / 455,216.90-682,760.55-155,711.30

Finding the Fourth Proportional to 455,216.90, 682,760.55 and 155,711.30

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Solution

The fourth proportional to 455,216.90, 682,760.55 and 155,711.30 is: 233,544.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,216.90 : 682,760.55 = 155,711.30 : x
  2. Step 2: Convert to fraction form
    455,216.90/682,760.55 = 155,711.30/x
  3. Step 3: Cross multiply
    455,216.90x = 682,760.55 × 155,711.30
  4. Step 4: Simplify right side
    455,216.90x = 106,313,532,829.22
  5. Step 5: Solve for x
    x = 106,313,532,829.22/455,216.90
  6. Step 6: Final answer
    x = 233,544.78

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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.