Finding the Fourth Proportional to 295,643.12, 407,866.70 and 218,304.08
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Solution
The fourth proportional to 295,643.12, 407,866.70 and 218,304.08 is: 301,170.43
Step by Step Solution
- Step 1: Write the proportion equation
295,643.12 : 407,866.70 = 218,304.08 : x - Step 2: Convert to fraction form
295,643.12/407,866.70 = 218,304.08/x - Step 3: Cross multiply
295,643.12x = 407,866.70 × 218,304.08 - Step 4: Simplify right side
295,643.12x = 89,038,964,706.14 - Step 5: Solve for x
x = 89,038,964,706.14/295,643.12 - Step 6: Final answer
x = 301,170.43
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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.