Finding the Fourth Proportional to 280,611.62, 387,252.53 and 153,295.41
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Solution
The fourth proportional to 280,611.62, 387,252.53 and 153,295.41 is: 211,552.31
Step by Step Solution
- Step 1: Write the proportion equation
280,611.62 : 387,252.53 = 153,295.41 : x - Step 2: Convert to fraction form
280,611.62/387,252.53 = 153,295.41/x - Step 3: Cross multiply
280,611.62x = 387,252.53 × 153,295.41 - Step 4: Simplify right side
280,611.62x = 59,364,035,743.13 - Step 5: Solve for x
x = 59,364,035,743.13/280,611.62 - Step 6: Final answer
x = 211,552.31
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1.5x scale
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.