Finding the Fourth Proportional to 251,220.85, 346,680.84 and 138,041.17
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Solution
The fourth proportional to 251,220.85, 346,680.84 and 138,041.17 is: 190,494.65
Step by Step Solution
- Step 1: Write the proportion equation
251,220.85 : 346,680.84 = 138,041.17 : x - Step 2: Convert to fraction form
251,220.85/346,680.84 = 138,041.17/x - Step 3: Cross multiply
251,220.85x = 346,680.84 × 138,041.17 - Step 4: Simplify right side
251,220.85x = 47,856,228,770.18 - Step 5: Solve for x
x = 47,856,228,770.18/251,220.85 - Step 6: Final answer
x = 190,494.65
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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.