Finding the Fourth Proportional to 631,894.40, 947,841.62 and 211,170.26
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Solution
The fourth proportional to 631,894.40, 947,841.62 and 211,170.26 is: 316,755.40
Step by Step Solution
- Step 1: Write the proportion equation
631,894.40 : 947,841.62 = 211,170.26 : x - Step 2: Convert to fraction form
631,894.40/947,841.62 = 211,170.26/x - Step 3: Cross multiply
631,894.40x = 947,841.62 × 211,170.26 - Step 4: Simplify right side
631,894.40x = 200,155,961,334.22 - Step 5: Solve for x
x = 200,155,961,334.22/631,894.40 - Step 6: Final answer
x = 316,755.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.