Finding the Fourth Proportional to 259,442.13, 389,130.99 and 69,917.33
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Solution
The fourth proportional to 259,442.13, 389,130.99 and 69,917.33 is: 104,867.31
Step by Step Solution
- Step 1: Write the proportion equation
259,442.13 : 389,130.99 = 69,917.33 : x - Step 2: Convert to fraction form
259,442.13/389,130.99 = 69,917.33/x - Step 3: Cross multiply
259,442.13x = 389,130.99 × 69,917.33 - Step 4: Simplify right side
259,442.13x = 27,206,997,895.40 - Step 5: Solve for x
x = 27,206,997,895.40/259,442.13 - Step 6: Final answer
x = 104,867.31
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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.