Finding the Fourth Proportional to 212,831.16, 319,216.62 and 63,087.28
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Solution
The fourth proportional to 212,831.16, 319,216.62 and 63,087.28 is: 94,621.99
Step by Step Solution
- Step 1: Write the proportion equation
212,831.16 : 319,216.62 = 63,087.28 : x - Step 2: Convert to fraction form
212,831.16/319,216.62 = 63,087.28/x - Step 3: Cross multiply
212,831.16x = 319,216.62 × 63,087.28 - Step 4: Simplify right side
212,831.16x = 20,138,508,286.59 - Step 5: Solve for x
x = 20,138,508,286.59/212,831.16 - Step 6: Final answer
x = 94,621.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.