Home / 455,148.80-682,723.20-305,460.80

Finding the Fourth Proportional to 455,148.80, 682,723.20 and 305,460.80

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Solution

The fourth proportional to 455,148.80, 682,723.20 and 305,460.80 is: 458,191.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,148.80 : 682,723.20 = 305,460.80 : x
  2. Step 2: Convert to fraction form
    455,148.80/682,723.20 = 305,460.80/x
  3. Step 3: Cross multiply
    455,148.80x = 682,723.20 × 305,460.80
  4. Step 4: Simplify right side
    455,148.80x = 208,545,174,850.56
  5. Step 5: Solve for x
    x = 208,545,174,850.56/455,148.80
  6. Step 6: Final answer
    x = 458,191.20

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Similar ratio
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1.5x scale

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.