Finding the Fourth Proportional to 408,078.70, 612,118.05 and 242,190.70
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Solution
The fourth proportional to 408,078.70, 612,118.05 and 242,190.70 is: 363,286.05
Step by Step Solution
- Step 1: Write the proportion equation
408,078.70 : 612,118.05 = 242,190.70 : x - Step 2: Convert to fraction form
408,078.70/612,118.05 = 242,190.70/x - Step 3: Cross multiply
408,078.70x = 612,118.05 × 242,190.70 - Step 4: Simplify right side
408,078.70x = 148,249,299,012.14 - Step 5: Solve for x
x = 148,249,299,012.14/408,078.70 - Step 6: Final answer
x = 363,286.05
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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.