Finding the Fourth Proportional to 278,741.23, 416,005.41 and 251,837.08
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Solution
The fourth proportional to 278,741.23, 416,005.41 and 251,837.08 is: 375,852.50
Step by Step Solution
- Step 1: Write the proportion equation
278,741.23 : 416,005.41 = 251,837.08 : x - Step 2: Convert to fraction form
278,741.23/416,005.41 = 251,837.08/x - Step 3: Cross multiply
278,741.23x = 416,005.41 × 251,837.08 - Step 4: Simplify right side
278,741.23x = 104,765,587,718.60 - Step 5: Solve for x
x = 104,765,587,718.60/278,741.23 - Step 6: Final answer
x = 375,852.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.