Finding the Fourth Proportional to 174,623.80, 261,935.70 and 121,479.70
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Solution
The fourth proportional to 174,623.80, 261,935.70 and 121,479.70 is: 182,219.55
Step by Step Solution
- Step 1: Write the proportion equation
174,623.80 : 261,935.70 = 121,479.70 : x - Step 2: Convert to fraction form
174,623.80/261,935.70 = 121,479.70/x - Step 3: Cross multiply
174,623.80x = 261,935.70 × 121,479.70 - Step 4: Simplify right side
174,623.80x = 31,819,870,255.29 - Step 5: Solve for x
x = 31,819,870,255.29/174,623.80 - Step 6: Final answer
x = 182,219.55
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1.5x scale
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.