Finding the Fourth Proportional to 315,312.44, 435,140.78 and 179,366.09
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Solution
The fourth proportional to 315,312.44, 435,140.78 and 179,366.09 is: 247,530.67
Step by Step Solution
- Step 1: Write the proportion equation
315,312.44 : 435,140.78 = 179,366.09 : x - Step 2: Convert to fraction form
315,312.44/435,140.78 = 179,366.09/x - Step 3: Cross multiply
315,312.44x = 435,140.78 × 179,366.09 - Step 4: Simplify right side
315,312.44x = 78,049,497,235.62 - Step 5: Solve for x
x = 78,049,497,235.62/315,312.44 - Step 6: Final answer
x = 247,530.67
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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.