Finding the Fourth Proportional to 212,309.88, 318,587.88 and 107,137.08
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Solution
The fourth proportional to 212,309.88, 318,587.88 and 107,137.08 is: 160,767.72
Step by Step Solution
- Step 1: Write the proportion equation
212,309.88 : 318,587.88 = 107,137.08 : x - Step 2: Convert to fraction form
212,309.88/318,587.88 = 107,137.08/x - Step 3: Cross multiply
212,309.88x = 318,587.88 × 107,137.08 - Step 4: Simplify right side
212,309.88x = 34,132,575,186.59 - Step 5: Solve for x
x = 34,132,575,186.59/212,309.88 - Step 6: Final answer
x = 160,767.72
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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.