Finding the Fourth Proportional to 202,437.99, 279,102.38 and 138,661.83
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Solution
The fourth proportional to 202,437.99, 279,102.38 and 138,661.83 is: 191,173.83
Step by Step Solution
- Step 1: Write the proportion equation
202,437.99 : 279,102.38 = 138,661.83 : x - Step 2: Convert to fraction form
202,437.99/279,102.38 = 138,661.83/x - Step 3: Cross multiply
202,437.99x = 279,102.38 × 138,661.83 - Step 4: Simplify right side
202,437.99x = 38,700,846,074.85 - Step 5: Solve for x
x = 38,700,846,074.85/202,437.99 - Step 6: Final answer
x = 191,173.83
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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.