Home / 289,982.90-434,755.55-190,168.22

Finding the Fourth Proportional to 289,982.90, 434,755.55 and 190,168.22

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Solution

The fourth proportional to 289,982.90, 434,755.55 and 190,168.22 is: 285,108.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,982.90 : 434,755.55 = 190,168.22 : x
  2. Step 2: Convert to fraction form
    289,982.90/434,755.55 = 190,168.22/x
  3. Step 3: Cross multiply
    289,982.90x = 434,755.55 × 190,168.22
  4. Step 4: Simplify right side
    289,982.90x = 82,676,690,640.93
  5. Step 5: Solve for x
    x = 82,676,690,640.93/289,982.90
  6. Step 6: Final answer
    x = 285,108.85

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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.