Finding the Fourth Proportional to 216,728.13, 299,116.55 and 124,829.75
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Solution
The fourth proportional to 216,728.13, 299,116.55 and 124,829.75 is: 172,283.33
Step by Step Solution
- Step 1: Write the proportion equation
216,728.13 : 299,116.55 = 124,829.75 : x - Step 2: Convert to fraction form
216,728.13/299,116.55 = 124,829.75/x - Step 3: Cross multiply
216,728.13x = 299,116.55 × 124,829.75 - Step 4: Simplify right side
216,728.13x = 37,338,644,157.36 - Step 5: Solve for x
x = 37,338,644,157.36/216,728.13 - Step 6: Final answer
x = 172,283.33
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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.