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Finding the Fourth Proportional to 489,099.96, 674,997.06 and 271,330.11

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Solution

The fourth proportional to 489,099.96, 674,997.06 and 271,330.11 is: 374,457.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,099.96 : 674,997.06 = 271,330.11 : x
  2. Step 2: Convert to fraction form
    489,099.96/674,997.06 = 271,330.11/x
  3. Step 3: Cross multiply
    489,099.96x = 674,997.06 × 271,330.11
  4. Step 4: Simplify right side
    489,099.96x = 183,147,026,539.48
  5. Step 5: Solve for x
    x = 183,147,026,539.48/489,099.96
  6. Step 6: Final answer
    x = 374,457.25

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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.