Finding the Fourth Proportional to 245,312.44, 338,543.26 and 149,803.72
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Solution
The fourth proportional to 245,312.44, 338,543.26 and 149,803.72 is: 206,736.52
Step by Step Solution
- Step 1: Write the proportion equation
245,312.44 : 338,543.26 = 149,803.72 : x - Step 2: Convert to fraction form
245,312.44/338,543.26 = 149,803.72/x - Step 3: Cross multiply
245,312.44x = 338,543.26 × 149,803.72 - Step 4: Simplify right side
245,312.44x = 50,715,039,728.93 - Step 5: Solve for x
x = 50,715,039,728.93/245,312.44 - Step 6: Final answer
x = 206,736.52
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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.