Finding the Fourth Proportional to 251,972.58, 347,723.10 and 138,795.06
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Solution
The fourth proportional to 251,972.58, 347,723.10 and 138,795.06 is: 191,537.70
Step by Step Solution
- Step 1: Write the proportion equation
251,972.58 : 347,723.10 = 138,795.06 : x - Step 2: Convert to fraction form
251,972.58/347,723.10 = 138,795.06/x - Step 3: Cross multiply
251,972.58x = 347,723.10 × 138,795.06 - Step 4: Simplify right side
251,972.58x = 48,262,248,527.89 - Step 5: Solve for x
x = 48,262,248,527.89/251,972.58 - Step 6: Final answer
x = 191,537.70
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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.