Finding the Fourth Proportional to 251,825.42, 347,518.44 and 138,648.17
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Solution
The fourth proportional to 251,825.42, 347,518.44 and 138,648.17 is: 191,334.12
Step by Step Solution
- Step 1: Write the proportion equation
251,825.42 : 347,518.44 = 138,648.17 : x - Step 2: Convert to fraction form
251,825.42/347,518.44 = 138,648.17/x - Step 3: Cross multiply
251,825.42x = 347,518.44 × 138,648.17 - Step 4: Simplify right side
251,825.42x = 48,182,796,616.05 - Step 5: Solve for x
x = 48,182,796,616.05/251,825.42 - Step 6: Final answer
x = 191,334.12
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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.