Finding the Fourth Proportional to 493,493.99, 681,023.97 and 267,139.49
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Solution
The fourth proportional to 493,493.99, 681,023.97 and 267,139.49 is: 368,653.72
Step by Step Solution
- Step 1: Write the proportion equation
493,493.99 : 681,023.97 = 267,139.49 : x - Step 2: Convert to fraction form
493,493.99/681,023.97 = 267,139.49/x - Step 3: Cross multiply
493,493.99x = 681,023.97 × 267,139.49 - Step 4: Simplify right side
493,493.99x = 181,928,392,618.46 - Step 5: Solve for x
x = 181,928,392,618.46/493,493.99 - Step 6: Final answer
x = 368,653.72
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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.