Finding the Fourth Proportional to 212,753.08, 319,158.80 and 94,421.80
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Solution
The fourth proportional to 212,753.08, 319,158.80 and 94,421.80 is: 141,645.65
Step by Step Solution
- Step 1: Write the proportion equation
212,753.08 : 319,158.80 = 94,421.80 : x - Step 2: Convert to fraction form
212,753.08/319,158.80 = 94,421.80/x - Step 3: Cross multiply
212,753.08x = 319,158.80 × 94,421.80 - Step 4: Simplify right side
212,753.08x = 30,135,548,381.84 - Step 5: Solve for x
x = 30,135,548,381.84/212,753.08 - Step 6: Final answer
x = 141,645.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.