Home / 455,000.04-682,631.22-139,503.48

Finding the Fourth Proportional to 455,000.04, 682,631.22 and 139,503.48

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Solution

The fourth proportional to 455,000.04, 682,631.22 and 139,503.48 is: 209,295.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,000.04 : 682,631.22 = 139,503.48 : x
  2. Step 2: Convert to fraction form
    455,000.04/682,631.22 = 139,503.48/x
  3. Step 3: Cross multiply
    455,000.04x = 682,631.22 × 139,503.48
  4. Step 4: Simplify right side
    455,000.04x = 95,229,430,746.65
  5. Step 5: Solve for x
    x = 95,229,430,746.65/455,000.04
  6. Step 6: Final answer
    x = 209,295.43

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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.