Home / 455,167.20-682,783.20-139,623.60

Finding the Fourth Proportional to 455,167.20, 682,783.20 and 139,623.60

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Solution

The fourth proportional to 455,167.20, 682,783.20 and 139,623.60 is: 209,445.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,167.20 : 682,783.20 = 139,623.60 : x
  2. Step 2: Convert to fraction form
    455,167.20/682,783.20 = 139,623.60/x
  3. Step 3: Cross multiply
    455,167.20x = 682,783.20 × 139,623.60
  4. Step 4: Simplify right side
    455,167.20x = 95,332,648,403.52
  5. Step 5: Solve for x
    x = 95,332,648,403.52/455,167.20
  6. Step 6: Final answer
    x = 209,445.34

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1.5x scale

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.