Finding the Fourth Proportional to 197,871.63, 296,315.07 and 138,428.97
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Solution
The fourth proportional to 197,871.63, 296,315.07 and 138,428.97 is: 207,298.99
Step by Step Solution
- Step 1: Write the proportion equation
197,871.63 : 296,315.07 = 138,428.97 : x - Step 2: Convert to fraction form
197,871.63/296,315.07 = 138,428.97/x - Step 3: Cross multiply
197,871.63x = 296,315.07 × 138,428.97 - Step 4: Simplify right side
197,871.63x = 41,018,588,454.00 - Step 5: Solve for x
x = 41,018,588,454.00/197,871.63 - Step 6: Final answer
x = 207,298.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.