Finding the Fourth Proportional to 212,202.06, 318,303.16 and 54,430.52
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Solution
The fourth proportional to 212,202.06, 318,303.16 and 54,430.52 is: 81,645.80
Step by Step Solution
- Step 1: Write the proportion equation
212,202.06 : 318,303.16 = 54,430.52 : x - Step 2: Convert to fraction form
212,202.06/318,303.16 = 54,430.52/x - Step 3: Cross multiply
212,202.06x = 318,303.16 × 54,430.52 - Step 4: Simplify right side
212,202.06x = 17,325,406,516.44 - Step 5: Solve for x
x = 17,325,406,516.44/212,202.06 - Step 6: Final answer
x = 81,645.80
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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.