Finding the Fourth Proportional to 252,990.58, 349,134.24 and 138,275.62
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Solution
The fourth proportional to 252,990.58, 349,134.24 and 138,275.62 is: 190,824.31
Step by Step Solution
- Step 1: Write the proportion equation
252,990.58 : 349,134.24 = 138,275.62 : x - Step 2: Convert to fraction form
252,990.58/349,134.24 = 138,275.62/x - Step 3: Cross multiply
252,990.58x = 349,134.24 × 138,275.62 - Step 4: Simplify right side
252,990.58x = 48,276,753,499.23 - Step 5: Solve for x
x = 48,276,753,499.23/252,990.58 - Step 6: Final answer
x = 190,824.31
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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.