Finding the Fourth Proportional to 205,721.29, 283,918.91 and 115,100.21
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Solution
The fourth proportional to 205,721.29, 283,918.91 and 115,100.21 is: 158,851.45
Step by Step Solution
- Step 1: Write the proportion equation
205,721.29 : 283,918.91 = 115,100.21 : x - Step 2: Convert to fraction form
205,721.29/283,918.91 = 115,100.21/x - Step 3: Cross multiply
205,721.29x = 283,918.91 × 115,100.21 - Step 4: Simplify right side
205,721.29x = 32,679,124,701.22 - Step 5: Solve for x
x = 32,679,124,701.22/205,721.29 - Step 6: Final answer
x = 158,851.45
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1.5x scale
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.