Home / 259,526.36-389,255.88-82,051.28

Finding the Fourth Proportional to 259,526.36, 389,255.88 and 82,051.28

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Solution

The fourth proportional to 259,526.36, 389,255.88 and 82,051.28 is: 123,066.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,526.36 : 389,255.88 = 82,051.28 : x
  2. Step 2: Convert to fraction form
    259,526.36/389,255.88 = 82,051.28/x
  3. Step 3: Cross multiply
    259,526.36x = 389,255.88 × 82,051.28
  4. Step 4: Simplify right side
    259,526.36x = 31,938,943,201.53
  5. Step 5: Solve for x
    x = 31,938,943,201.53/259,526.36
  6. Step 6: Final answer
    x = 123,066.28

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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.