Finding the Fourth Proportional to 317,696.10, 438,423.66 and 174,459.14
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Solution
The fourth proportional to 317,696.10, 438,423.66 and 174,459.14 is: 240,755.28
Step by Step Solution
- Step 1: Write the proportion equation
317,696.10 : 438,423.66 = 174,459.14 : x - Step 2: Convert to fraction form
317,696.10/438,423.66 = 174,459.14/x - Step 3: Cross multiply
317,696.10x = 438,423.66 × 174,459.14 - Step 4: Simplify right side
317,696.10x = 76,487,014,679.25 - Step 5: Solve for x
x = 76,487,014,679.25/317,696.10 - Step 6: Final answer
x = 240,755.28
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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.