Finding the Fourth Proportional to 387,830.74, 534,765.15 and 273,072.70
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Solution
The fourth proportional to 387,830.74, 534,765.15 and 273,072.70 is: 376,529.63
Step by Step Solution
- Step 1: Write the proportion equation
387,830.74 : 534,765.15 = 273,072.70 : x - Step 2: Convert to fraction form
387,830.74/534,765.15 = 273,072.70/x - Step 3: Cross multiply
387,830.74x = 534,765.15 × 273,072.70 - Step 4: Simplify right side
387,830.74x = 146,029,763,376.41 - Step 5: Solve for x
x = 146,029,763,376.41/387,830.74 - Step 6: Final answer
x = 376,529.63
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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.