Finding the Fourth Proportional to 386,337.74, 579,503.84 and 120,097.80
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Solution
The fourth proportional to 386,337.74, 579,503.84 and 120,097.80 is: 180,145.84
Step by Step Solution
- Step 1: Write the proportion equation
386,337.74 : 579,503.84 = 120,097.80 : x - Step 2: Convert to fraction form
386,337.74/579,503.84 = 120,097.80/x - Step 3: Cross multiply
386,337.74x = 579,503.84 × 120,097.80 - Step 4: Simplify right side
386,337.74x = 69,597,135,675.06 - Step 5: Solve for x
x = 69,597,135,675.06/386,337.74 - Step 6: Final answer
x = 180,145.84
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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.