Finding the Fourth Proportional to 276,548.24, 381,672.98 and 155,713.15
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Solution
The fourth proportional to 276,548.24, 381,672.98 and 155,713.15 is: 214,904.65
Step by Step Solution
- Step 1: Write the proportion equation
276,548.24 : 381,672.98 = 155,713.15 : x - Step 2: Convert to fraction form
276,548.24/381,672.98 = 155,713.15/x - Step 3: Cross multiply
276,548.24x = 381,672.98 × 155,713.15 - Step 4: Simplify right side
276,548.24x = 59,431,502,268.14 - Step 5: Solve for x
x = 59,431,502,268.14/276,548.24 - Step 6: Final answer
x = 214,904.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.