Finding the Fourth Proportional to 211,028.49, 291,220.16 and 115,544.07
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Solution
The fourth proportional to 211,028.49, 291,220.16 and 115,544.07 is: 159,451.28
Step by Step Solution
- Step 1: Write the proportion equation
211,028.49 : 291,220.16 = 115,544.07 : x - Step 2: Convert to fraction form
211,028.49/291,220.16 = 115,544.07/x - Step 3: Cross multiply
211,028.49x = 291,220.16 × 115,544.07 - Step 4: Simplify right side
211,028.49x = 33,648,762,552.45 - Step 5: Solve for x
x = 33,648,762,552.45/211,028.49 - Step 6: Final answer
x = 159,451.28
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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.