Finding the Fourth Proportional to 402,684.22, 555,690.01 and 221,394.75
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Solution
The fourth proportional to 402,684.22, 555,690.01 and 221,394.75 is: 305,516.95
Step by Step Solution
- Step 1: Write the proportion equation
402,684.22 : 555,690.01 = 221,394.75 : x - Step 2: Convert to fraction form
402,684.22/555,690.01 = 221,394.75/x - Step 3: Cross multiply
402,684.22x = 555,690.01 × 221,394.75 - Step 4: Simplify right side
402,684.22x = 123,026,851,745.00 - Step 5: Solve for x
x = 123,026,851,745.00/402,684.22 - Step 6: Final answer
x = 305,516.95
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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.