Home / 286,128.86-394,850.31-158,801.18

Finding the Fourth Proportional to 286,128.86, 394,850.31 and 158,801.18

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Solution

The fourth proportional to 286,128.86, 394,850.31 and 158,801.18 is: 219,141.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,128.86 : 394,850.31 = 158,801.18 : x
  2. Step 2: Convert to fraction form
    286,128.86/394,850.31 = 158,801.18/x
  3. Step 3: Cross multiply
    286,128.86x = 394,850.31 × 158,801.18
  4. Step 4: Simplify right side
    286,128.86x = 62,702,695,151.37
  5. Step 5: Solve for x
    x = 62,702,695,151.37/286,128.86
  6. Step 6: Final answer
    x = 219,141.46

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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.