Finding the Fourth Proportional to 285,283.04, 427,691.28 and 107,688.92
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Solution
The fourth proportional to 285,283.04, 427,691.28 and 107,688.92 is: 161,445.32
Step by Step Solution
- Step 1: Write the proportion equation
285,283.04 : 427,691.28 = 107,688.92 : x - Step 2: Convert to fraction form
285,283.04/427,691.28 = 107,688.92/x - Step 3: Cross multiply
285,283.04x = 427,691.28 × 107,688.92 - Step 4: Simplify right side
285,283.04x = 46,057,612,036.62 - Step 5: Solve for x
x = 46,057,612,036.62/285,283.04 - Step 6: Final answer
x = 161,445.32
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1.5x scale
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.