Finding the Fourth Proportional to 261,385.26, 392,114.21 and 83,946.66
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Solution
The fourth proportional to 261,385.26, 392,114.21 and 83,946.66 is: 125,931.65
Step by Step Solution
- Step 1: Write the proportion equation
261,385.26 : 392,114.21 = 83,946.66 : x - Step 2: Convert to fraction form
261,385.26/392,114.21 = 83,946.66/x - Step 3: Cross multiply
261,385.26x = 392,114.21 × 83,946.66 - Step 4: Simplify right side
261,385.26x = 32,916,677,848.31 - Step 5: Solve for x
x = 32,916,677,848.31/261,385.26 - Step 6: Final answer
x = 125,931.65
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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.