Finding the Fourth Proportional to 197,278.17, 272,243.34 and 112,395.84
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Solution
The fourth proportional to 197,278.17, 272,243.34 and 112,395.84 is: 155,105.95
Step by Step Solution
- Step 1: Write the proportion equation
197,278.17 : 272,243.34 = 112,395.84 : x - Step 2: Convert to fraction form
197,278.17/272,243.34 = 112,395.84/x - Step 3: Cross multiply
197,278.17x = 272,243.34 × 112,395.84 - Step 4: Simplify right side
197,278.17x = 30,599,018,883.71 - Step 5: Solve for x
x = 30,599,018,883.71/197,278.17 - Step 6: Final answer
x = 155,105.95
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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.