Finding the Fourth Proportional to 261,612.06, 392,145.93 and 121,255.26
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Solution
The fourth proportional to 261,612.06, 392,145.93 and 121,255.26 is: 181,756.75
Step by Step Solution
- Step 1: Write the proportion equation
261,612.06 : 392,145.93 = 121,255.26 : x - Step 2: Convert to fraction form
261,612.06/392,145.93 = 121,255.26/x - Step 3: Cross multiply
261,612.06x = 392,145.93 × 121,255.26 - Step 4: Simplify right side
261,612.06x = 47,549,756,700.09 - Step 5: Solve for x
x = 47,549,756,700.09/261,612.06 - Step 6: Final answer
x = 181,756.75
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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.