Finding the Fourth Proportional to 217,874.95, 300,695.50 and 122,381.62
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Solution
The fourth proportional to 217,874.95, 300,695.50 and 122,381.62 is: 168,902.40
Step by Step Solution
- Step 1: Write the proportion equation
217,874.95 : 300,695.50 = 122,381.62 : x - Step 2: Convert to fraction form
217,874.95/300,695.50 = 122,381.62/x - Step 3: Cross multiply
217,874.95x = 300,695.50 × 122,381.62 - Step 4: Simplify right side
217,874.95x = 36,799,602,416.71 - Step 5: Solve for x
x = 36,799,602,416.71/217,874.95 - Step 6: Final answer
x = 168,902.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.