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Finding the Fourth Proportional to 254,181.75, 350,759.16 and 139,457.90

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Solution

The fourth proportional to 254,181.75, 350,759.16 and 139,457.90 is: 192,445.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,181.75 : 350,759.16 = 139,457.90 : x
  2. Step 2: Convert to fraction form
    254,181.75/350,759.16 = 139,457.90/x
  3. Step 3: Cross multiply
    254,181.75x = 350,759.16 × 139,457.90
  4. Step 4: Simplify right side
    254,181.75x = 48,916,136,736.26
  5. Step 5: Solve for x
    x = 48,916,136,736.26/254,181.75
  6. Step 6: Final answer
    x = 192,445.51

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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.