Finding the Fourth Proportional to 408,990.87, 564,261.30 and 236,814.84
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Solution
The fourth proportional to 408,990.87, 564,261.30 and 236,814.84 is: 326,719.88
Step by Step Solution
- Step 1: Write the proportion equation
408,990.87 : 564,261.30 = 236,814.84 : x - Step 2: Convert to fraction form
408,990.87/564,261.30 = 236,814.84/x - Step 3: Cross multiply
408,990.87x = 564,261.30 × 236,814.84 - Step 4: Simplify right side
408,990.87x = 133,625,449,477.69 - Step 5: Solve for x
x = 133,625,449,477.69/408,990.87 - Step 6: Final answer
x = 326,719.88
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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.