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Finding the Fourth Proportional to 248,379, 342,763.06 and 135,202.60

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Solution

The fourth proportional to 248,379, 342,763.06 and 135,202.60 is: 186,579.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,379 : 342,763.06 = 135,202.60 : x
  2. Step 2: Convert to fraction form
    248,379/342,763.06 = 135,202.60/x
  3. Step 3: Cross multiply
    248,379x = 342,763.06 × 135,202.60
  4. Step 4: Simplify right side
    248,379x = 46,342,456,895.96
  5. Step 5: Solve for x
    x = 46,342,456,895.96/248,379
  6. Step 6: Final answer
    x = 186,579.61

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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.