Finding the Fourth Proportional to 339,440.80, 509,031.60 and 102,704.80
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Solution
The fourth proportional to 339,440.80, 509,031.60 and 102,704.80 is: 154,017.99
Step by Step Solution
- Step 1: Write the proportion equation
339,440.80 : 509,031.60 = 102,704.80 : x - Step 2: Convert to fraction form
339,440.80/509,031.60 = 102,704.80/x - Step 3: Cross multiply
339,440.80x = 509,031.60 × 102,704.80 - Step 4: Simplify right side
339,440.80x = 52,279,988,671.68 - Step 5: Solve for x
x = 52,279,988,671.68/339,440.80 - Step 6: Final answer
x = 154,017.99
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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.