Finding the Fourth Proportional to 174,809.40, 261,695.70 and 115,711.80
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Solution
The fourth proportional to 174,809.40, 261,695.70 and 115,711.80 is: 173,224.55
Step by Step Solution
- Step 1: Write the proportion equation
174,809.40 : 261,695.70 = 115,711.80 : x - Step 2: Convert to fraction form
174,809.40/261,695.70 = 115,711.80/x - Step 3: Cross multiply
174,809.40x = 261,695.70 × 115,711.80 - Step 4: Simplify right side
174,809.40x = 30,281,280,499.26 - Step 5: Solve for x
x = 30,281,280,499.26/174,809.40 - Step 6: Final answer
x = 173,224.55
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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.