Home / 210,999.36-316,280.34-131,932.02

Finding the Fourth Proportional to 210,999.36, 316,280.34 and 131,932.02

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Solution

The fourth proportional to 210,999.36, 316,280.34 and 131,932.02 is: 197,761.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,999.36 : 316,280.34 = 131,932.02 : x
  2. Step 2: Convert to fraction form
    210,999.36/316,280.34 = 131,932.02/x
  3. Step 3: Cross multiply
    210,999.36x = 316,280.34 × 131,932.02
  4. Step 4: Simplify right side
    210,999.36x = 41,727,504,142.49
  5. Step 5: Solve for x
    x = 41,727,504,142.49/210,999.36
  6. Step 6: Final answer
    x = 197,761.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.