Finding the Fourth Proportional to 215,890.14, 297,927.63 and 120,394.38
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Solution
The fourth proportional to 215,890.14, 297,927.63 and 120,394.38 is: 166,143.82
Step by Step Solution
- Step 1: Write the proportion equation
215,890.14 : 297,927.63 = 120,394.38 : x - Step 2: Convert to fraction form
215,890.14/297,927.63 = 120,394.38/x - Step 3: Cross multiply
215,890.14x = 297,927.63 × 120,394.38 - Step 4: Simplify right side
215,890.14x = 35,868,812,298.72 - Step 5: Solve for x
x = 35,868,812,298.72/215,890.14 - Step 6: Final answer
x = 166,143.82
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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.