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Finding the Fourth Proportional to 260,715, 359,786.70 and 141,483

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Solution

The fourth proportional to 260,715, 359,786.70 and 141,483 is: 195,246.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,715 : 359,786.70 = 141,483 : x
  2. Step 2: Convert to fraction form
    260,715/359,786.70 = 141,483/x
  3. Step 3: Cross multiply
    260,715x = 359,786.70 × 141,483
  4. Step 4: Simplify right side
    260,715x = 50,903,701,676.10
  5. Step 5: Solve for x
    x = 50,903,701,676.10/260,715
  6. Step 6: Final answer
    x = 195,246.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.