Finding the Fourth Proportional to 217,484.19, 300,108.02 and 121,972.41
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Solution
The fourth proportional to 217,484.19, 300,108.02 and 121,972.41 is: 168,310.62
Step by Step Solution
- Step 1: Write the proportion equation
217,484.19 : 300,108.02 = 121,972.41 : x - Step 2: Convert to fraction form
217,484.19/300,108.02 = 121,972.41/x - Step 3: Cross multiply
217,484.19x = 300,108.02 × 121,972.41 - Step 4: Simplify right side
217,484.19x = 36,604,897,849.87 - Step 5: Solve for x
x = 36,604,897,849.87/217,484.19 - Step 6: Final answer
x = 168,310.62
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1.5x scale
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.