Finding the Fourth Proportional to 211,028.74, 291,220.51 and 115,544.32
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Solution
The fourth proportional to 211,028.74, 291,220.51 and 115,544.32 is: 159,451.63
Step by Step Solution
- Step 1: Write the proportion equation
211,028.74 : 291,220.51 = 115,544.32 : x - Step 2: Convert to fraction form
211,028.74/291,220.51 = 115,544.32/x - Step 3: Cross multiply
211,028.74x = 291,220.51 × 115,544.32 - Step 4: Simplify right side
211,028.74x = 33,648,875,798.00 - Step 5: Solve for x
x = 33,648,875,798.00/211,028.74 - Step 6: Final answer
x = 159,451.63
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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.