Home / 286,003.21-394,731.53-158,719.81

Finding the Fourth Proportional to 286,003.21, 394,731.53 and 158,719.81

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Solution

The fourth proportional to 286,003.21, 394,731.53 and 158,719.81 is: 219,059.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,003.21 : 394,731.53 = 158,719.81 : x
  2. Step 2: Convert to fraction form
    286,003.21/394,731.53 = 158,719.81/x
  3. Step 3: Cross multiply
    286,003.21x = 394,731.53 × 158,719.81
  4. Step 4: Simplify right side
    286,003.21x = 62,651,713,442.61
  5. Step 5: Solve for x
    x = 62,651,713,442.61/286,003.21
  6. Step 6: Final answer
    x = 219,059.48

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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.