Finding the Fourth Proportional to 284,106.58, 392,069.36 and 155,046.07
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Solution
The fourth proportional to 284,106.58, 392,069.36 and 155,046.07 is: 213,964.82
Step by Step Solution
- Step 1: Write the proportion equation
284,106.58 : 392,069.36 = 155,046.07 : x - Step 2: Convert to fraction form
284,106.58/392,069.36 = 155,046.07/x - Step 3: Cross multiply
284,106.58x = 392,069.36 × 155,046.07 - Step 4: Simplify right side
284,106.58x = 60,788,813,435.42 - Step 5: Solve for x
x = 60,788,813,435.42/284,106.58 - Step 6: Final answer
x = 213,964.82
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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.