Finding the Fourth Proportional to 197,376.20, 272,378.58 and 106,731.84
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Solution
The fourth proportional to 197,376.20, 272,378.58 and 106,731.84 is: 147,289.63
Step by Step Solution
- Step 1: Write the proportion equation
197,376.20 : 272,378.58 = 106,731.84 : x - Step 2: Convert to fraction form
197,376.20/272,378.58 = 106,731.84/x - Step 3: Cross multiply
197,376.20x = 272,378.58 × 106,731.84 - Step 4: Simplify right side
197,376.20x = 29,071,467,019.99 - Step 5: Solve for x
x = 29,071,467,019.99/197,376.20 - Step 6: Final answer
x = 147,289.63
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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.