Finding the Fourth Proportional to 251,948.05, 347,688.29 and 138,770.80
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Solution
The fourth proportional to 251,948.05, 347,688.29 and 138,770.80 is: 191,503.69
Step by Step Solution
- Step 1: Write the proportion equation
251,948.05 : 347,688.29 = 138,770.80 : x - Step 2: Convert to fraction form
251,948.05/347,688.29 = 138,770.80/x - Step 3: Cross multiply
251,948.05x = 347,688.29 × 138,770.80 - Step 4: Simplify right side
251,948.05x = 48,248,981,631.64 - Step 5: Solve for x
x = 48,248,981,631.64/251,948.05 - Step 6: Final answer
x = 191,503.69
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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.