Finding the Fourth Proportional to 197,710.86, 272,839.62 and 107,064.75
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Solution
The fourth proportional to 197,710.86, 272,839.62 and 107,064.75 is: 147,748.61
Step by Step Solution
- Step 1: Write the proportion equation
197,710.86 : 272,839.62 = 107,064.75 : x - Step 2: Convert to fraction form
197,710.86/272,839.62 = 107,064.75/x - Step 3: Cross multiply
197,710.86x = 272,839.62 × 107,064.75 - Step 4: Simplify right side
197,710.86x = 29,211,504,341.20 - Step 5: Solve for x
x = 29,211,504,341.20/197,710.86 - Step 6: Final answer
x = 147,748.61
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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.