Home / 263,938.10-395,823.76-86,404.27

Finding the Fourth Proportional to 263,938.10, 395,823.76 and 86,404.27

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Solution

The fourth proportional to 263,938.10, 395,823.76 and 86,404.27 is: 129,579.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,938.10 : 395,823.76 = 86,404.27 : x
  2. Step 2: Convert to fraction form
    263,938.10/395,823.76 = 86,404.27/x
  3. Step 3: Cross multiply
    263,938.10x = 395,823.76 × 86,404.27
  4. Step 4: Simplify right side
    263,938.10x = 34,200,863,054.08
  5. Step 5: Solve for x
    x = 34,200,863,054.08/263,938.10
  6. Step 6: Final answer
    x = 129,579.11

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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.