Finding the Fourth Proportional to 357,342.21, 493,133.22 and 196,207.71
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Solution
The fourth proportional to 357,342.21, 493,133.22 and 196,207.71 is: 270,767.17
Step by Step Solution
- Step 1: Write the proportion equation
357,342.21 : 493,133.22 = 196,207.71 : x - Step 2: Convert to fraction form
357,342.21/493,133.22 = 196,207.71/x - Step 3: Cross multiply
357,342.21x = 493,133.22 × 196,207.71 - Step 4: Simplify right side
357,342.21x = 96,756,539,821.13 - Step 5: Solve for x
x = 96,756,539,821.13/357,342.21 - Step 6: Final answer
x = 270,767.17
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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.