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Finding the Fourth Proportional to 263,312.32, 394,764.48 and 130,100.80

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Solution

The fourth proportional to 263,312.32, 394,764.48 and 130,100.80 is: 195,050.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,312.32 : 394,764.48 = 130,100.80 : x
  2. Step 2: Convert to fraction form
    263,312.32/394,764.48 = 130,100.80/x
  3. Step 3: Cross multiply
    263,312.32x = 394,764.48 × 130,100.80
  4. Step 4: Simplify right side
    263,312.32x = 51,359,174,659.58
  5. Step 5: Solve for x
    x = 51,359,174,659.58/263,312.32
  6. Step 6: Final answer
    x = 195,050.41

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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.