Home / 286,015.34-394,701.23-158,690.63

Finding the Fourth Proportional to 286,015.34, 394,701.23 and 158,690.63

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Solution

The fourth proportional to 286,015.34, 394,701.23 and 158,690.63 is: 218,993.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,015.34 : 394,701.23 = 158,690.63 : x
  2. Step 2: Convert to fraction form
    286,015.34/394,701.23 = 158,690.63/x
  3. Step 3: Cross multiply
    286,015.34x = 394,701.23 × 158,690.63
  4. Step 4: Simplify right side
    286,015.34x = 62,635,388,233.95
  5. Step 5: Solve for x
    x = 62,635,388,233.95/286,015.34
  6. Step 6: Final answer
    x = 218,993.11

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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.