Finding the Fourth Proportional to 212,724.71, 293,560.16 and 115,928.60
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Solution
The fourth proportional to 212,724.71, 293,560.16 and 115,928.60 is: 159,981.49
Step by Step Solution
- Step 1: Write the proportion equation
212,724.71 : 293,560.16 = 115,928.60 : x - Step 2: Convert to fraction form
212,724.71/293,560.16 = 115,928.60/x - Step 3: Cross multiply
212,724.71x = 293,560.16 × 115,928.60 - Step 4: Simplify right side
212,724.71x = 34,032,016,317.13 - Step 5: Solve for x
x = 34,032,016,317.13/212,724.71 - Step 6: Final answer
x = 159,981.49
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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.