Finding the Fourth Proportional to 251,950.18, 347,691.23 and 138,772.93
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Solution
The fourth proportional to 251,950.18, 347,691.23 and 138,772.93 is: 191,506.63
Step by Step Solution
- Step 1: Write the proportion equation
251,950.18 : 347,691.23 = 138,772.93 : x - Step 2: Convert to fraction form
251,950.18/347,691.23 = 138,772.93/x - Step 3: Cross multiply
251,950.18x = 347,691.23 × 138,772.93 - Step 4: Simplify right side
251,950.18x = 48,250,128,290.08 - Step 5: Solve for x
x = 48,250,128,290.08/251,950.18 - Step 6: Final answer
x = 191,506.63
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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.