Finding the Fourth Proportional to 261,395.79, 392,056.62 and 83,879.84
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Solution
The fourth proportional to 261,395.79, 392,056.62 and 83,879.84 is: 125,807.86
Step by Step Solution
- Step 1: Write the proportion equation
261,395.79 : 392,056.62 = 83,879.84 : x - Step 2: Convert to fraction form
261,395.79/392,056.62 = 83,879.84/x - Step 3: Cross multiply
261,395.79x = 392,056.62 × 83,879.84 - Step 4: Simplify right side
261,395.79x = 32,885,644,596.26 - Step 5: Solve for x
x = 32,885,644,596.26/261,395.79 - Step 6: Final answer
x = 125,807.86
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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.