Finding the Fourth Proportional to 212,765.44, 319,079.04 and 100,430.08
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Solution
The fourth proportional to 212,765.44, 319,079.04 and 100,430.08 is: 150,612.49
Step by Step Solution
- Step 1: Write the proportion equation
212,765.44 : 319,079.04 = 100,430.08 : x - Step 2: Convert to fraction form
212,765.44/319,079.04 = 100,430.08/x - Step 3: Cross multiply
212,765.44x = 319,079.04 × 100,430.08 - Step 4: Simplify right side
212,765.44x = 32,045,133,513.52 - Step 5: Solve for x
x = 32,045,133,513.52/212,765.44 - Step 6: Final answer
x = 150,612.49
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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.