Finding the Fourth Proportional to 397,994.58, 549,055.08 and 268,891.56
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Solution
The fourth proportional to 397,994.58, 549,055.08 and 268,891.56 is: 370,950.47
Step by Step Solution
- Step 1: Write the proportion equation
397,994.58 : 549,055.08 = 268,891.56 : x - Step 2: Convert to fraction form
397,994.58/549,055.08 = 268,891.56/x - Step 3: Cross multiply
397,994.58x = 549,055.08 × 268,891.56 - Step 4: Simplify right side
397,994.58x = 147,636,276,987.13 - Step 5: Solve for x
x = 147,636,276,987.13/397,994.58 - Step 6: Final answer
x = 370,950.47
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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.