Finding the Fourth Proportional to 194,731.18, 268,728.87 and 105,307.18
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Solution
The fourth proportional to 194,731.18, 268,728.87 and 105,307.18 is: 145,323.82
Step by Step Solution
- Step 1: Write the proportion equation
194,731.18 : 268,728.87 = 105,307.18 : x - Step 2: Convert to fraction form
194,731.18/268,728.87 = 105,307.18/x - Step 3: Cross multiply
194,731.18x = 268,728.87 × 105,307.18 - Step 4: Simplify right side
194,731.18x = 28,299,079,484.29 - Step 5: Solve for x
x = 28,299,079,484.29/194,731.18 - Step 6: Final answer
x = 145,323.82
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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.