Finding the Fourth Proportional to 317,776.36, 438,424.67 and 179,936.45
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Solution
The fourth proportional to 317,776.36, 438,424.67 and 179,936.45 is: 248,251.88
Step by Step Solution
- Step 1: Write the proportion equation
317,776.36 : 438,424.67 = 179,936.45 : x - Step 2: Convert to fraction form
317,776.36/438,424.67 = 179,936.45/x - Step 3: Cross multiply
317,776.36x = 438,424.67 × 179,936.45 - Step 4: Simplify right side
317,776.36x = 78,888,578,712.22 - Step 5: Solve for x
x = 78,888,578,712.22/317,776.36 - Step 6: Final answer
x = 248,251.88
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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.