Finding the Fourth Proportional to 392,951.99, 589,427.21 and 108,641.81
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Solution
The fourth proportional to 392,951.99, 589,427.21 and 108,641.81 is: 162,962.50
Step by Step Solution
- Step 1: Write the proportion equation
392,951.99 : 589,427.21 = 108,641.81 : x - Step 2: Convert to fraction form
392,951.99/589,427.21 = 108,641.81/x - Step 3: Cross multiply
392,951.99x = 589,427.21 × 108,641.81 - Step 4: Simplify right side
392,951.99x = 64,036,440,702.82 - Step 5: Solve for x
x = 64,036,440,702.82/392,951.99 - Step 6: Final answer
x = 162,962.50
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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.