Home / 248,416.25-342,815.72-135,239.81

Finding the Fourth Proportional to 248,416.25, 342,815.72 and 135,239.81

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Solution

The fourth proportional to 248,416.25, 342,815.72 and 135,239.81 is: 186,631.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,416.25 : 342,815.72 = 135,239.81 : x
  2. Step 2: Convert to fraction form
    248,416.25/342,815.72 = 135,239.81/x
  3. Step 3: Cross multiply
    248,416.25x = 342,815.72 × 135,239.81
  4. Step 4: Simplify right side
    248,416.25x = 46,362,332,837.81
  5. Step 5: Solve for x
    x = 46,362,332,837.81/248,416.25
  6. Step 6: Final answer
    x = 186,631.64

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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.