Finding the Fourth Proportional to 211,371.18, 291,688.88 and 115,878.53
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Solution
The fourth proportional to 211,371.18, 291,688.88 and 115,878.53 is: 159,910.53
Step by Step Solution
- Step 1: Write the proportion equation
211,371.18 : 291,688.88 = 115,878.53 : x - Step 2: Convert to fraction form
211,371.18/291,688.88 = 115,878.53/x - Step 3: Cross multiply
211,371.18x = 291,688.88 × 115,878.53 - Step 4: Simplify right side
211,371.18x = 33,800,476,593.91 - Step 5: Solve for x
x = 33,800,476,593.91/211,371.18 - Step 6: Final answer
x = 159,910.53
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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.