Finding the Fourth Proportional to 291,213.36, 401,831.28 and 163,881.36
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Solution
The fourth proportional to 291,213.36, 401,831.28 and 163,881.36 is: 226,131.99
Step by Step Solution
- Step 1: Write the proportion equation
291,213.36 : 401,831.28 = 163,881.36 : x - Step 2: Convert to fraction form
291,213.36/401,831.28 = 163,881.36/x - Step 3: Cross multiply
291,213.36x = 401,831.28 × 163,881.36 - Step 4: Simplify right side
291,213.36x = 65,852,656,656.94 - Step 5: Solve for x
x = 65,852,656,656.94/291,213.36 - Step 6: Final answer
x = 226,131.99
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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.