Finding the Fourth Proportional to 280,955.44, 387,706.26 and 160,122.88
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Solution
The fourth proportional to 280,955.44, 387,706.26 and 160,122.88 is: 220,962.59
Step by Step Solution
- Step 1: Write the proportion equation
280,955.44 : 387,706.26 = 160,122.88 : x - Step 2: Convert to fraction form
280,955.44/387,706.26 = 160,122.88/x - Step 3: Cross multiply
280,955.44x = 387,706.26 × 160,122.88 - Step 4: Simplify right side
280,955.44x = 62,080,642,945.23 - Step 5: Solve for x
x = 62,080,642,945.23/280,955.44 - Step 6: Final answer
x = 220,962.59
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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.