Finding the Fourth Proportional to 251,996.22, 378,068.14 and 74,507.84
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Solution
The fourth proportional to 251,996.22, 378,068.14 and 74,507.84 is: 111,783.59
Step by Step Solution
- Step 1: Write the proportion equation
251,996.22 : 378,068.14 = 74,507.84 : x - Step 2: Convert to fraction form
251,996.22/378,068.14 = 74,507.84/x - Step 3: Cross multiply
251,996.22x = 378,068.14 × 74,507.84 - Step 4: Simplify right side
251,996.22x = 28,169,042,044.15 - Step 5: Solve for x
x = 28,169,042,044.15/251,996.22 - Step 6: Final answer
x = 111,783.59
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.