Finding the Fourth Proportional to 197,718.53, 272,851.83 and 107,074.65
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Solution
The fourth proportional to 197,718.53, 272,851.83 and 107,074.65 is: 147,763.15
Step by Step Solution
- Step 1: Write the proportion equation
197,718.53 : 272,851.83 = 107,074.65 : x - Step 2: Convert to fraction form
197,718.53/272,851.83 = 107,074.65/x - Step 3: Cross multiply
197,718.53x = 272,851.83 × 107,074.65 - Step 4: Simplify right side
197,718.53x = 29,215,513,153.24 - Step 5: Solve for x
x = 29,215,513,153.24/197,718.53 - Step 6: Final answer
x = 147,763.15
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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.