Finding the Fourth Proportional to 197,825.12, 272,849.84 and 137,395.84
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Solution
The fourth proportional to 197,825.12, 272,849.84 and 137,395.84 is: 189,502.90
Step by Step Solution
- Step 1: Write the proportion equation
197,825.12 : 272,849.84 = 137,395.84 : x - Step 2: Convert to fraction form
197,825.12/272,849.84 = 137,395.84/x - Step 3: Cross multiply
197,825.12x = 272,849.84 × 137,395.84 - Step 4: Simplify right side
197,825.12x = 37,488,432,960.67 - Step 5: Solve for x
x = 37,488,432,960.67/197,825.12 - Step 6: Final answer
x = 189,502.90
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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.