Finding the Fourth Proportional to 212,946.44, 318,894.78 and 133,864.52
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Solution
The fourth proportional to 212,946.44, 318,894.78 and 133,864.52 is: 200,466.82
Step by Step Solution
- Step 1: Write the proportion equation
212,946.44 : 318,894.78 = 133,864.52 : x - Step 2: Convert to fraction form
212,946.44/318,894.78 = 133,864.52/x - Step 3: Cross multiply
212,946.44x = 318,894.78 × 133,864.52 - Step 4: Simplify right side
212,946.44x = 42,688,696,655.21 - Step 5: Solve for x
x = 42,688,696,655.21/212,946.44 - Step 6: Final answer
x = 200,466.82
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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.