Home / 259,973.42-389,973.98-82,494.32

Finding the Fourth Proportional to 259,973.42, 389,973.98 and 82,494.32

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Solution

The fourth proportional to 259,973.42, 389,973.98 and 82,494.32 is: 123,745.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,973.42 : 389,973.98 = 82,494.32 : x
  2. Step 2: Convert to fraction form
    259,973.42/389,973.98 = 82,494.32/x
  3. Step 3: Cross multiply
    259,973.42x = 389,973.98 × 82,494.32
  4. Step 4: Simplify right side
    259,973.42x = 32,170,638,297.79
  5. Step 5: Solve for x
    x = 32,170,638,297.79/259,973.42
  6. Step 6: Final answer
    x = 123,745.87

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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.