Finding the Fourth Proportional to 212,364.81, 293,058.36 and 121,773.87
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Solution
The fourth proportional to 212,364.81, 293,058.36 and 121,773.87 is: 168,045.03
Step by Step Solution
- Step 1: Write the proportion equation
212,364.81 : 293,058.36 = 121,773.87 : x - Step 2: Convert to fraction form
212,364.81/293,058.36 = 121,773.87/x - Step 3: Cross multiply
212,364.81x = 293,058.36 × 121,773.87 - Step 4: Simplify right side
212,364.81x = 35,686,850,633.05 - Step 5: Solve for x
x = 35,686,850,633.05/212,364.81 - Step 6: Final answer
x = 168,045.03
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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.