Home / 455,738.48-683,609.40-140,193.20

Finding the Fourth Proportional to 455,738.48, 683,609.40 and 140,193.20

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Solution

The fourth proportional to 455,738.48, 683,609.40 and 140,193.20 is: 210,290.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,738.48 : 683,609.40 = 140,193.20 : x
  2. Step 2: Convert to fraction form
    455,738.48/683,609.40 = 140,193.20/x
  3. Step 3: Cross multiply
    455,738.48x = 683,609.40 × 140,193.20
  4. Step 4: Simplify right side
    455,738.48x = 95,837,389,336.08
  5. Step 5: Solve for x
    x = 95,837,389,336.08/455,738.48
  6. Step 6: Final answer
    x = 210,290.32

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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.