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Finding the Fourth Proportional to 324,613.82, 489,136.47 and 266,745.80

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Solution

The fourth proportional to 324,613.82, 489,136.47 and 266,745.80 is: 401,939.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,613.82 : 489,136.47 = 266,745.80 : x
  2. Step 2: Convert to fraction form
    324,613.82/489,136.47 = 266,745.80/x
  3. Step 3: Cross multiply
    324,613.82x = 489,136.47 × 266,745.80
  4. Step 4: Simplify right side
    324,613.82x = 130,475,099,221.87
  5. Step 5: Solve for x
    x = 130,475,099,221.87/324,613.82
  6. Step 6: Final answer
    x = 401,939.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.