Home / 231,827.20-347,546.40-121,019.20

Finding the Fourth Proportional to 231,827.20, 347,546.40 and 121,019.20

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Solution

The fourth proportional to 231,827.20, 347,546.40 and 121,019.20 is: 181,427.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,827.20 : 347,546.40 = 121,019.20 : x
  2. Step 2: Convert to fraction form
    231,827.20/347,546.40 = 121,019.20/x
  3. Step 3: Cross multiply
    231,827.20x = 347,546.40 × 121,019.20
  4. Step 4: Simplify right side
    231,827.20x = 42,059,787,290.88
  5. Step 5: Solve for x
    x = 42,059,787,290.88/231,827.20
  6. Step 6: Final answer
    x = 181,427.32

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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.