Finding the Fourth Proportional to 280,522.14, 387,121.97 and 153,197.74
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Solution
The fourth proportional to 280,522.14, 387,121.97 and 153,197.74 is: 211,413.65
Step by Step Solution
- Step 1: Write the proportion equation
280,522.14 : 387,121.97 = 153,197.74 : x - Step 2: Convert to fraction form
280,522.14/387,121.97 = 153,197.74/x - Step 3: Cross multiply
280,522.14x = 387,121.97 × 153,197.74 - Step 4: Simplify right side
280,522.14x = 59,306,210,908.35 - Step 5: Solve for x
x = 59,306,210,908.35/280,522.14 - Step 6: Final answer
x = 211,413.65
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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.