Finding the Fourth Proportional to 261,623.08, 392,478.36 and 103,852.90
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Solution
The fourth proportional to 261,623.08, 392,478.36 and 103,852.90 is: 155,796.71
Step by Step Solution
- Step 1: Write the proportion equation
261,623.08 : 392,478.36 = 103,852.90 : x - Step 2: Convert to fraction form
261,623.08/392,478.36 = 103,852.90/x - Step 3: Cross multiply
261,623.08x = 392,478.36 × 103,852.90 - Step 4: Simplify right side
261,623.08x = 40,760,015,873.24 - Step 5: Solve for x
x = 40,760,015,873.24/261,623.08 - Step 6: Final answer
x = 155,796.71
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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.