Home / 231,012.60-346,518.90-131,479.80

Finding the Fourth Proportional to 231,012.60, 346,518.90 and 131,479.80

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Solution

The fourth proportional to 231,012.60, 346,518.90 and 131,479.80 is: 197,219.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,012.60 : 346,518.90 = 131,479.80 : x
  2. Step 2: Convert to fraction form
    231,012.60/346,518.90 = 131,479.80/x
  3. Step 3: Cross multiply
    231,012.60x = 346,518.90 × 131,479.80
  4. Step 4: Simplify right side
    231,012.60x = 45,560,235,668.22
  5. Step 5: Solve for x
    x = 45,560,235,668.22/231,012.60
  6. Step 6: Final answer
    x = 197,219.70

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1.5x scale

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.