Finding the Fourth Proportional to 215,922.08, 297,972.98 and 120,434.96
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Solution
The fourth proportional to 215,922.08, 297,972.98 and 120,434.96 is: 166,200.53
Step by Step Solution
- Step 1: Write the proportion equation
215,922.08 : 297,972.98 = 120,434.96 : x - Step 2: Convert to fraction form
215,922.08/297,972.98 = 120,434.96/x - Step 3: Cross multiply
215,922.08x = 297,972.98 × 120,434.96 - Step 4: Simplify right side
215,922.08x = 35,886,363,927.38 - Step 5: Solve for x
x = 35,886,363,927.38/215,922.08 - Step 6: Final answer
x = 166,200.53
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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.