Finding the Fourth Proportional to 251,699.52, 347,338.08 and 138,519.84
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Solution
The fourth proportional to 251,699.52, 347,338.08 and 138,519.84 is: 191,153.39
Step by Step Solution
- Step 1: Write the proportion equation
251,699.52 : 347,338.08 = 138,519.84 : x - Step 2: Convert to fraction form
251,699.52/347,338.08 = 138,519.84/x - Step 3: Cross multiply
251,699.52x = 347,338.08 × 138,519.84 - Step 4: Simplify right side
251,699.52x = 48,113,215,267.51 - Step 5: Solve for x
x = 48,113,215,267.51/251,699.52 - Step 6: Final answer
x = 191,153.39
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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.