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Finding the Fourth Proportional to 292,396.92, 438,136.11 and 225,999.60

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Solution

The fourth proportional to 292,396.92, 438,136.11 and 225,999.60 is: 338,644.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,396.92 : 438,136.11 = 225,999.60 : x
  2. Step 2: Convert to fraction form
    292,396.92/438,136.11 = 225,999.60/x
  3. Step 3: Cross multiply
    292,396.92x = 438,136.11 × 225,999.60
  4. Step 4: Simplify right side
    292,396.92x = 99,018,585,605.56
  5. Step 5: Solve for x
    x = 99,018,585,605.56/292,396.92
  6. Step 6: Final answer
    x = 338,644.42

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1.5x scale

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.