Finding the Fourth Proportional to 211,398.13, 291,732.29 and 115,904.62
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Solution
The fourth proportional to 211,398.13, 291,732.29 and 115,904.62 is: 159,949.95
Step by Step Solution
- Step 1: Write the proportion equation
211,398.13 : 291,732.29 = 115,904.62 : x - Step 2: Convert to fraction form
211,398.13/291,732.29 = 115,904.62/x - Step 3: Cross multiply
211,398.13x = 291,732.29 × 115,904.62 - Step 4: Simplify right side
211,398.13x = 33,813,120,214.18 - Step 5: Solve for x
x = 33,813,120,214.18/211,398.13 - Step 6: Final answer
x = 159,949.95
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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.