Finding the Fourth Proportional to 319,173.17, 440,638.88 and 211,889.88
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Solution
The fourth proportional to 319,173.17, 440,638.88 and 211,889.88 is: 292,527.47
Step by Step Solution
- Step 1: Write the proportion equation
319,173.17 : 440,638.88 = 211,889.88 : x - Step 2: Convert to fraction form
319,173.17/440,638.88 = 211,889.88/x - Step 3: Cross multiply
319,173.17x = 440,638.88 × 211,889.88 - Step 4: Simplify right side
319,173.17x = 93,366,918,347.09 - Step 5: Solve for x
x = 93,366,918,347.09/319,173.17 - Step 6: Final answer
x = 292,527.47
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1.5x scale
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.