Finding the Fourth Proportional to 217,787.40, 300,538.80 and 122,298.12
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Solution
The fourth proportional to 217,787.40, 300,538.80 and 122,298.12 is: 168,767.02
Step by Step Solution
- Step 1: Write the proportion equation
217,787.40 : 300,538.80 = 122,298.12 : x - Step 2: Convert to fraction form
217,787.40/300,538.80 = 122,298.12/x - Step 3: Cross multiply
217,787.40x = 300,538.80 × 122,298.12 - Step 4: Simplify right side
217,787.40x = 36,755,330,227.06 - Step 5: Solve for x
x = 36,755,330,227.06/217,787.40 - Step 6: Final answer
x = 168,767.02
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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.