Finding the Fourth Proportional to 310,115.76, 427,959.75 and 174,149.82
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Solution
The fourth proportional to 310,115.76, 427,959.75 and 174,149.82 is: 240,326.75
Step by Step Solution
- Step 1: Write the proportion equation
310,115.76 : 427,959.75 = 174,149.82 : x - Step 2: Convert to fraction form
310,115.76/427,959.75 = 174,149.82/x - Step 3: Cross multiply
310,115.76x = 427,959.75 × 174,149.82 - Step 4: Simplify right side
310,115.76x = 74,529,115,286.44 - Step 5: Solve for x
x = 74,529,115,286.44/310,115.76 - Step 6: Final answer
x = 240,326.75
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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.