Home / 455,211.20-682,525.20-189,077.60

Finding the Fourth Proportional to 455,211.20, 682,525.20 and 189,077.60

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Solution

The fourth proportional to 455,211.20, 682,525.20 and 189,077.60 is: 283,495.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,211.20 : 682,525.20 = 189,077.60 : x
  2. Step 2: Convert to fraction form
    455,211.20/682,525.20 = 189,077.60/x
  3. Step 3: Cross multiply
    455,211.20x = 682,525.20 × 189,077.60
  4. Step 4: Simplify right side
    455,211.20x = 129,050,226,755.52
  5. Step 5: Solve for x
    x = 129,050,226,755.52/455,211.20
  6. Step 6: Final answer
    x = 283,495.28

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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.