Home / 338,197.68-465,650.57-287,104.50

Finding the Fourth Proportional to 338,197.68, 465,650.57 and 287,104.50

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Solution

The fourth proportional to 338,197.68, 465,650.57 and 287,104.50 is: 395,302.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,197.68 : 465,650.57 = 287,104.50 : x
  2. Step 2: Convert to fraction form
    338,197.68/465,650.57 = 287,104.50/x
  3. Step 3: Cross multiply
    338,197.68x = 465,650.57 × 287,104.50
  4. Step 4: Simplify right side
    338,197.68x = 133,690,374,792.33
  5. Step 5: Solve for x
    x = 133,690,374,792.33/338,197.68
  6. Step 6: Final answer
    x = 395,302.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.