Finding the Fourth Proportional to 261,629.70, 392,444.55 and 149,309.70
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Solution
The fourth proportional to 261,629.70, 392,444.55 and 149,309.70 is: 223,964.55
Step by Step Solution
- Step 1: Write the proportion equation
261,629.70 : 392,444.55 = 149,309.70 : x - Step 2: Convert to fraction form
261,629.70/392,444.55 = 149,309.70/x - Step 3: Cross multiply
261,629.70x = 392,444.55 × 149,309.70 - Step 4: Simplify right side
261,629.70x = 58,595,778,027.14 - Step 5: Solve for x
x = 58,595,778,027.14/261,629.70 - Step 6: Final answer
x = 223,964.55
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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.