Finding the Fourth Proportional to 228,126.97, 342,235.41 and 78,330.84
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Solution
The fourth proportional to 228,126.97, 342,235.41 and 78,330.84 is: 117,511.70
Step by Step Solution
- Step 1: Write the proportion equation
228,126.97 : 342,235.41 = 78,330.84 : x - Step 2: Convert to fraction form
228,126.97/342,235.41 = 78,330.84/x - Step 3: Cross multiply
228,126.97x = 342,235.41 × 78,330.84 - Step 4: Simplify right side
228,126.97x = 26,807,587,143.04 - Step 5: Solve for x
x = 26,807,587,143.04/228,126.97 - Step 6: Final answer
x = 117,511.70
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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.