Finding the Fourth Proportional to 285,967.18, 394,634.87 and 158,642.88
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Solution
The fourth proportional to 285,967.18, 394,634.87 and 158,642.88 is: 218,927.26
Step by Step Solution
- Step 1: Write the proportion equation
285,967.18 : 394,634.87 = 158,642.88 : x - Step 2: Convert to fraction form
285,967.18/394,634.87 = 158,642.88/x - Step 3: Cross multiply
285,967.18x = 394,634.87 × 158,642.88 - Step 4: Simplify right side
285,967.18x = 62,606,012,325.23 - Step 5: Solve for x
x = 62,606,012,325.23/285,967.18 - Step 6: Final answer
x = 218,927.26
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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.