Finding the Fourth Proportional to 217,252.80, 325,879.20 and 190,987.20
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Solution
The fourth proportional to 217,252.80, 325,879.20 and 190,987.20 is: 286,480.80
Step by Step Solution
- Step 1: Write the proportion equation
217,252.80 : 325,879.20 = 190,987.20 : x - Step 2: Convert to fraction form
217,252.80/325,879.20 = 190,987.20/x - Step 3: Cross multiply
217,252.80x = 325,879.20 × 190,987.20 - Step 4: Simplify right side
217,252.80x = 62,238,755,946.24 - Step 5: Solve for x
x = 62,238,755,946.24/217,252.80 - Step 6: Final answer
x = 286,480.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.