Finding the Fourth Proportional to 197,815.12, 272,984.93 and 107,171.71
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Solution
The fourth proportional to 197,815.12, 272,984.93 and 107,171.71 is: 147,896.99
Step by Step Solution
- Step 1: Write the proportion equation
197,815.12 : 272,984.93 = 107,171.71 : x - Step 2: Convert to fraction form
197,815.12/272,984.93 = 107,171.71/x - Step 3: Cross multiply
197,815.12x = 272,984.93 × 107,171.71 - Step 4: Simplify right side
197,815.12x = 29,256,261,752.33 - Step 5: Solve for x
x = 29,256,261,752.33/197,815.12 - Step 6: Final answer
x = 147,896.99
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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.