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Finding the Fourth Proportional to 454,900.88, 682,502.32 and 139,360.88

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Solution

The fourth proportional to 454,900.88, 682,502.32 and 139,360.88 is: 209,087.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,900.88 : 682,502.32 = 139,360.88 : x
  2. Step 2: Convert to fraction form
    454,900.88/682,502.32 = 139,360.88/x
  3. Step 3: Cross multiply
    454,900.88x = 682,502.32 × 139,360.88
  4. Step 4: Simplify right side
    454,900.88x = 95,114,123,917.24
  5. Step 5: Solve for x
    x = 95,114,123,917.24/454,900.88
  6. Step 6: Final answer
    x = 209,087.58

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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.