Finding the Fourth Proportional to 221,004.42, 304,986.50 and 125,511.10
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Solution
The fourth proportional to 221,004.42, 304,986.50 and 125,511.10 is: 173,205.55
Step by Step Solution
- Step 1: Write the proportion equation
221,004.42 : 304,986.50 = 125,511.10 : x - Step 2: Convert to fraction form
221,004.42/304,986.50 = 125,511.10/x - Step 3: Cross multiply
221,004.42x = 304,986.50 × 125,511.10 - Step 4: Simplify right side
221,004.42x = 38,279,191,100.15 - Step 5: Solve for x
x = 38,279,191,100.15/221,004.42 - Step 6: Final answer
x = 173,205.55
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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.