Home / 231,106.40-346,774.80-131,343.20

Finding the Fourth Proportional to 231,106.40, 346,774.80 and 131,343.20

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Solution

The fourth proportional to 231,106.40, 346,774.80 and 131,343.20 is: 197,080.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,106.40 : 346,774.80 = 131,343.20 : x
  2. Step 2: Convert to fraction form
    231,106.40/346,774.80 = 131,343.20/x
  3. Step 3: Cross multiply
    231,106.40x = 346,774.80 × 131,343.20
  4. Step 4: Simplify right side
    231,106.40x = 45,546,511,911.36
  5. Step 5: Solve for x
    x = 45,546,511,911.36/231,106.40
  6. Step 6: Final answer
    x = 197,080.27

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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.