Home / 455,043.04-682,664.16-139,524.56

Finding the Fourth Proportional to 455,043.04, 682,664.16 and 139,524.56

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Solution

The fourth proportional to 455,043.04, 682,664.16 and 139,524.56 is: 209,317.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,043.04 : 682,664.16 = 139,524.56 : x
  2. Step 2: Convert to fraction form
    455,043.04/682,664.16 = 139,524.56/x
  3. Step 3: Cross multiply
    455,043.04x = 682,664.16 × 139,524.56
  4. Step 4: Simplify right side
    455,043.04x = 95,248,416,551.77
  5. Step 5: Solve for x
    x = 95,248,416,551.77/455,043.04
  6. Step 6: Final answer
    x = 209,317.38

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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.