Finding the Fourth Proportional to 212,049.84, 292,462.88 and 131,431.76
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Solution
The fourth proportional to 212,049.84, 292,462.88 and 131,431.76 is: 181,272.99
Step by Step Solution
- Step 1: Write the proportion equation
212,049.84 : 292,462.88 = 131,431.76 : x - Step 2: Convert to fraction form
212,049.84/292,462.88 = 131,431.76/x - Step 3: Cross multiply
212,049.84x = 292,462.88 × 131,431.76 - Step 4: Simplify right side
212,049.84x = 38,438,908,933.60 - Step 5: Solve for x
x = 38,438,908,933.60/212,049.84 - Step 6: Final answer
x = 181,272.99
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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.