Finding the Fourth Proportional to 212,563.14, 293,331.14 and 115,764.81
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Solution
The fourth proportional to 212,563.14, 293,331.14 and 115,764.81 is: 159,752.17
Step by Step Solution
- Step 1: Write the proportion equation
212,563.14 : 293,331.14 = 115,764.81 : x - Step 2: Convert to fraction form
212,563.14/293,331.14 = 115,764.81/x - Step 3: Cross multiply
212,563.14x = 293,331.14 × 115,764.81 - Step 4: Simplify right side
212,563.14x = 33,957,421,643.70 - Step 5: Solve for x
x = 33,957,421,643.70/212,563.14 - Step 6: Final answer
x = 159,752.17
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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.