Finding the Fourth Proportional to 197,612.30, 272,705.14 and 106,967.99
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Solution
The fourth proportional to 197,612.30, 272,705.14 and 106,967.99 is: 147,615.91
Step by Step Solution
- Step 1: Write the proportion equation
197,612.30 : 272,705.14 = 106,967.99 : x - Step 2: Convert to fraction form
197,612.30/272,705.14 = 106,967.99/x - Step 3: Cross multiply
197,612.30x = 272,705.14 × 106,967.99 - Step 4: Simplify right side
197,612.30x = 29,170,720,481.30 - Step 5: Solve for x
x = 29,170,720,481.30/197,612.30 - Step 6: Final answer
x = 147,615.91
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1.5x scale
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.