Finding the Fourth Proportional to 197,357.12, 272,353.01 and 106,713.05
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Solution
The fourth proportional to 197,357.12, 272,353.01 and 106,713.05 is: 147,264.11
Step by Step Solution
- Step 1: Write the proportion equation
197,357.12 : 272,353.01 = 106,713.05 : x - Step 2: Convert to fraction form
197,357.12/272,353.01 = 106,713.05/x - Step 3: Cross multiply
197,357.12x = 272,353.01 × 106,713.05 - Step 4: Simplify right side
197,357.12x = 29,063,620,521.10 - Step 5: Solve for x
x = 29,063,620,521.10/197,357.12 - Step 6: Final answer
x = 147,264.11
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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.