Finding the Fourth Proportional to 212,454.24, 318,878.28 and 107,347.08
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Solution
The fourth proportional to 212,454.24, 318,878.28 and 107,347.08 is: 161,120.12
Step by Step Solution
- Step 1: Write the proportion equation
212,454.24 : 318,878.28 = 107,347.08 : x - Step 2: Convert to fraction form
212,454.24/318,878.28 = 107,347.08/x - Step 3: Cross multiply
212,454.24x = 318,878.28 × 107,347.08 - Step 4: Simplify right side
212,454.24x = 34,230,652,233.42 - Step 5: Solve for x
x = 34,230,652,233.42/212,454.24 - Step 6: Final answer
x = 161,120.12
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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.