Home / 282,099.35-389,297.46-154,775.45

Finding the Fourth Proportional to 282,099.35, 389,297.46 and 154,775.45

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Solution

The fourth proportional to 282,099.35, 389,297.46 and 154,775.45 is: 213,590.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,099.35 : 389,297.46 = 154,775.45 : x
  2. Step 2: Convert to fraction form
    282,099.35/389,297.46 = 154,775.45/x
  3. Step 3: Cross multiply
    282,099.35x = 389,297.46 × 154,775.45
  4. Step 4: Simplify right side
    282,099.35x = 60,253,687,608.87
  5. Step 5: Solve for x
    x = 60,253,687,608.87/282,099.35
  6. Step 6: Final answer
    x = 213,590.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.