Home / 259,440.26-389,128.19-69,915.44

Finding the Fourth Proportional to 259,440.26, 389,128.19 and 69,915.44

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Solution

The fourth proportional to 259,440.26, 389,128.19 and 69,915.44 is: 104,864.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,440.26 : 389,128.19 = 69,915.44 : x
  2. Step 2: Convert to fraction form
    259,440.26/389,128.19 = 69,915.44/x
  3. Step 3: Cross multiply
    259,440.26x = 389,128.19 × 69,915.44
  4. Step 4: Simplify right side
    259,440.26x = 27,206,069,243.50
  5. Step 5: Solve for x
    x = 27,206,069,243.50/259,440.26
  6. Step 6: Final answer
    x = 104,864.49

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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.