Home / 286,121.46-394,842.69-158,802.42

Finding the Fourth Proportional to 286,121.46, 394,842.69 and 158,802.42

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Solution

The fourth proportional to 286,121.46, 394,842.69 and 158,802.42 is: 219,144.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,121.46 : 394,842.69 = 158,802.42 : x
  2. Step 2: Convert to fraction form
    286,121.46/394,842.69 = 158,802.42/x
  3. Step 3: Cross multiply
    286,121.46x = 394,842.69 × 158,802.42
  4. Step 4: Simplify right side
    286,121.46x = 62,701,974,691.31
  5. Step 5: Solve for x
    x = 62,701,974,691.31/286,121.46
  6. Step 6: Final answer
    x = 219,144.61

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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.