Home / 286,181.46-394,923.11-157,119.30

Finding the Fourth Proportional to 286,181.46, 394,923.11 and 157,119.30

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Solution

The fourth proportional to 286,181.46, 394,923.11 and 157,119.30 is: 216,820.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,181.46 : 394,923.11 = 157,119.30 : x
  2. Step 2: Convert to fraction form
    286,181.46/394,923.11 = 157,119.30/x
  3. Step 3: Cross multiply
    286,181.46x = 394,923.11 × 157,119.30
  4. Step 4: Simplify right side
    286,181.46x = 62,050,041,811.43
  5. Step 5: Solve for x
    x = 62,050,041,811.43/286,181.46
  6. Step 6: Final answer
    x = 216,820.62

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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.