Finding the Fourth Proportional to 317,476.70, 438,104.12 and 174,239.18
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Solution
The fourth proportional to 317,476.70, 438,104.12 and 174,239.18 is: 240,442.54
Step by Step Solution
- Step 1: Write the proportion equation
317,476.70 : 438,104.12 = 174,239.18 : x - Step 2: Convert to fraction form
317,476.70/438,104.12 = 174,239.18/x - Step 3: Cross multiply
317,476.70x = 438,104.12 × 174,239.18 - Step 4: Simplify right side
317,476.70x = 76,334,902,623.42 - Step 5: Solve for x
x = 76,334,902,623.42/317,476.70 - Step 6: Final answer
x = 240,442.54
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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.