Finding the Fourth Proportional to 212,782.13, 293,641.35 and 117,292.23
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Solution
The fourth proportional to 212,782.13, 293,641.35 and 117,292.23 is: 161,864.39
Step by Step Solution
- Step 1: Write the proportion equation
212,782.13 : 293,641.35 = 117,292.23 : x - Step 2: Convert to fraction form
212,782.13/293,641.35 = 117,292.23/x - Step 3: Cross multiply
212,782.13x = 293,641.35 × 117,292.23 - Step 4: Simplify right side
212,782.13x = 34,441,848,761.71 - Step 5: Solve for x
x = 34,441,848,761.71/212,782.13 - Step 6: Final answer
x = 161,864.39
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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.