Finding the Fourth Proportional to 199,534.32, 299,213.40 and 74,787.84
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Solution
The fourth proportional to 199,534.32, 299,213.40 and 74,787.84 is: 112,148.75
Step by Step Solution
- Step 1: Write the proportion equation
199,534.32 : 299,213.40 = 74,787.84 : x - Step 2: Convert to fraction form
199,534.32/299,213.40 = 74,787.84/x - Step 3: Cross multiply
199,534.32x = 299,213.40 × 74,787.84 - Step 4: Simplify right side
199,534.32x = 22,377,523,885.06 - Step 5: Solve for x
x = 22,377,523,885.06/199,534.32 - Step 6: Final answer
x = 112,148.75
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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.