Finding the Fourth Proportional to 197,278.41, 272,246.22 and 106,636.14
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Solution
The fourth proportional to 197,278.41, 272,246.22 and 106,636.14 is: 147,158.96
Step by Step Solution
- Step 1: Write the proportion equation
197,278.41 : 272,246.22 = 106,636.14 : x - Step 2: Convert to fraction form
197,278.41/272,246.22 = 106,636.14/x - Step 3: Cross multiply
197,278.41x = 272,246.22 × 106,636.14 - Step 4: Simplify right side
197,278.41x = 29,031,286,030.39 - Step 5: Solve for x
x = 29,031,286,030.39/197,278.41 - Step 6: Final answer
x = 147,158.96
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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.