Finding the Fourth Proportional to 194,381.21, 268,248.76 and 108,337.79
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Solution
The fourth proportional to 194,381.21, 268,248.76 and 108,337.79 is: 149,507.65
Step by Step Solution
- Step 1: Write the proportion equation
194,381.21 : 268,248.76 = 108,337.79 : x - Step 2: Convert to fraction form
194,381.21/268,248.76 = 108,337.79/x - Step 3: Cross multiply
194,381.21x = 268,248.76 × 108,337.79 - Step 4: Simplify right side
194,381.21x = 29,061,478,228.42 - Step 5: Solve for x
x = 29,061,478,228.42/194,381.21 - Step 6: Final answer
x = 149,507.65
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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.