Finding the Fourth Proportional to 197,656.20, 272,762.26 and 107,011.43
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Solution
The fourth proportional to 197,656.20, 272,762.26 and 107,011.43 is: 147,673.99
Step by Step Solution
- Step 1: Write the proportion equation
197,656.20 : 272,762.26 = 107,011.43 : x - Step 2: Convert to fraction form
197,656.20/272,762.26 = 107,011.43/x - Step 3: Cross multiply
197,656.20x = 272,762.26 × 107,011.43 - Step 4: Simplify right side
197,656.20x = 29,188,679,185.12 - Step 5: Solve for x
x = 29,188,679,185.12/197,656.20 - Step 6: Final answer
x = 147,673.99
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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.