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Finding the Fourth Proportional to 210,504.42, 290,485.53 and 114,993.54

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Solution

The fourth proportional to 210,504.42, 290,485.53 and 114,993.54 is: 158,685.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,504.42 : 290,485.53 = 114,993.54 : x
  2. Step 2: Convert to fraction form
    210,504.42/290,485.53 = 114,993.54/x
  3. Step 3: Cross multiply
    210,504.42x = 290,485.53 × 114,993.54
  4. Step 4: Simplify right side
    210,504.42x = 33,403,959,413.48
  5. Step 5: Solve for x
    x = 33,403,959,413.48/210,504.42
  6. Step 6: Final answer
    x = 158,685.31

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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.