Finding the Fourth Proportional to 276,306.16, 381,286.86 and 155,452.54
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Solution
The fourth proportional to 276,306.16, 381,286.86 and 155,452.54 is: 214,515.71
Step by Step Solution
- Step 1: Write the proportion equation
276,306.16 : 381,286.86 = 155,452.54 : x - Step 2: Convert to fraction form
276,306.16/381,286.86 = 155,452.54/x - Step 3: Cross multiply
276,306.16x = 381,286.86 × 155,452.54 - Step 4: Simplify right side
276,306.16x = 59,272,010,855.62 - Step 5: Solve for x
x = 59,272,010,855.62/276,306.16 - Step 6: Final answer
x = 214,515.71
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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.