Finding the Fourth Proportional to 357,342.21, 493,133.21 and 196,207.70
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Solution
The fourth proportional to 357,342.21, 493,133.21 and 196,207.70 is: 270,767.14
Step by Step Solution
- Step 1: Write the proportion equation
357,342.21 : 493,133.21 = 196,207.70 : x - Step 2: Convert to fraction form
357,342.21/493,133.21 = 196,207.70/x - Step 3: Cross multiply
357,342.21x = 493,133.21 × 196,207.70 - Step 4: Simplify right side
357,342.21x = 96,756,529,481.01 - Step 5: Solve for x
x = 96,756,529,481.01/357,342.21 - Step 6: Final answer
x = 270,767.14
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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.