Finding the Fourth Proportional to 212,352.93, 318,531.92 and 72,122.49
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Solution
The fourth proportional to 212,352.93, 318,531.92 and 72,122.49 is: 108,184.59
Step by Step Solution
- Step 1: Write the proportion equation
212,352.93 : 318,531.92 = 72,122.49 : x - Step 2: Convert to fraction form
212,352.93/318,531.92 = 72,122.49/x - Step 3: Cross multiply
212,352.93x = 318,531.92 × 72,122.49 - Step 4: Simplify right side
212,352.93x = 22,973,314,854.27 - Step 5: Solve for x
x = 22,973,314,854.27/212,352.93 - Step 6: Final answer
x = 108,184.59
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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.