Finding the Fourth Proportional to 202,488.24, 279,171.72 and 138,712.08
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Solution
The fourth proportional to 202,488.24, 279,171.72 and 138,712.08 is: 191,243.16
Step by Step Solution
- Step 1: Write the proportion equation
202,488.24 : 279,171.72 = 138,712.08 : x - Step 2: Convert to fraction form
202,488.24/279,171.72 = 138,712.08/x - Step 3: Cross multiply
202,488.24x = 279,171.72 × 138,712.08 - Step 4: Simplify right side
202,488.24x = 38,724,489,958.38 - Step 5: Solve for x
x = 38,724,489,958.38/202,488.24 - Step 6: Final answer
x = 191,243.16
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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.