Finding the Fourth Proportional to 212,757.23, 293,618.12 and 117,263.70
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Solution
The fourth proportional to 212,757.23, 293,618.12 and 117,263.70 is: 161,831.15
Step by Step Solution
- Step 1: Write the proportion equation
212,757.23 : 293,618.12 = 117,263.70 : x - Step 2: Convert to fraction form
212,757.23/293,618.12 = 117,263.70/x - Step 3: Cross multiply
212,757.23x = 293,618.12 × 117,263.70 - Step 4: Simplify right side
212,757.23x = 34,430,746,551.93 - Step 5: Solve for x
x = 34,430,746,551.93/212,757.23 - Step 6: Final answer
x = 161,831.15
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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.