Finding the Fourth Proportional to 205,726.64, 283,889.36 and 115,066.88
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Solution
The fourth proportional to 205,726.64, 283,889.36 and 115,066.88 is: 158,784.80
Step by Step Solution
- Step 1: Write the proportion equation
205,726.64 : 283,889.36 = 115,066.88 : x - Step 2: Convert to fraction form
205,726.64/283,889.36 = 115,066.88/x - Step 3: Cross multiply
205,726.64x = 283,889.36 × 115,066.88 - Step 4: Simplify right side
205,726.64x = 32,666,262,920.40 - Step 5: Solve for x
x = 32,666,262,920.40/205,726.64 - Step 6: Final answer
x = 158,784.80
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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.