Finding the Fourth Proportional to 212,590.47, 318,924.96 and 87,941.19
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Solution
The fourth proportional to 212,590.47, 318,924.96 and 87,941.19 is: 131,928.02
Step by Step Solution
- Step 1: Write the proportion equation
212,590.47 : 318,924.96 = 87,941.19 : x - Step 2: Convert to fraction form
212,590.47/318,924.96 = 87,941.19/x - Step 3: Cross multiply
212,590.47x = 318,924.96 × 87,941.19 - Step 4: Simplify right side
212,590.47x = 28,046,640,503.10 - Step 5: Solve for x
x = 28,046,640,503.10/212,590.47 - Step 6: Final answer
x = 131,928.02
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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.