Home / 286,185.81-394,916.65-158,851.38

Finding the Fourth Proportional to 286,185.81, 394,916.65 and 158,851.38

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Solution

The fourth proportional to 286,185.81, 394,916.65 and 158,851.38 is: 219,203.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,185.81 : 394,916.65 = 158,851.38 : x
  2. Step 2: Convert to fraction form
    286,185.81/394,916.65 = 158,851.38/x
  3. Step 3: Cross multiply
    286,185.81x = 394,916.65 × 158,851.38
  4. Step 4: Simplify right side
    286,185.81x = 62,733,054,837.48
  5. Step 5: Solve for x
    x = 62,733,054,837.48/286,185.81
  6. Step 6: Final answer
    x = 219,203.93

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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.