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Finding the Fourth Proportional to 454,967.55, 682,451.33 and 139,383.45

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Solution

The fourth proportional to 454,967.55, 682,451.33 and 139,383.45 is: 209,075.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,967.55 : 682,451.33 = 139,383.45 : x
  2. Step 2: Convert to fraction form
    454,967.55/682,451.33 = 139,383.45/x
  3. Step 3: Cross multiply
    454,967.55x = 682,451.33 × 139,383.45
  4. Step 4: Simplify right side
    454,967.55x = 95,122,420,135.57
  5. Step 5: Solve for x
    x = 95,122,420,135.57/454,967.55
  6. Step 6: Final answer
    x = 209,075.18

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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.