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Finding the Fourth Proportional to 454,954.85, 682,407.67 and 139,412.67

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Solution

The fourth proportional to 454,954.85, 682,407.67 and 139,412.67 is: 209,111.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,954.85 : 682,407.67 = 139,412.67 : x
  2. Step 2: Convert to fraction form
    454,954.85/682,407.67 = 139,412.67/x
  3. Step 3: Cross multiply
    454,954.85x = 682,407.67 × 139,412.67
  4. Step 4: Simplify right side
    454,954.85x = 95,136,271,194.08
  5. Step 5: Solve for x
    x = 95,136,271,194.08/454,954.85
  6. Step 6: Final answer
    x = 209,111.46

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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.