Home / 263,325.18-395,028.72-85,790.82

Finding the Fourth Proportional to 263,325.18, 395,028.72 and 85,790.82

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Solution

The fourth proportional to 263,325.18, 395,028.72 and 85,790.82 is: 128,699.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,325.18 : 395,028.72 = 85,790.82 : x
  2. Step 2: Convert to fraction form
    263,325.18/395,028.72 = 85,790.82/x
  3. Step 3: Cross multiply
    263,325.18x = 395,028.72 × 85,790.82
  4. Step 4: Simplify right side
    263,325.18x = 33,889,837,812.35
  5. Step 5: Solve for x
    x = 33,889,837,812.35/263,325.18
  6. Step 6: Final answer
    x = 128,699.57

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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.