Finding the Fourth Proportional to 235,721.26, 325,303.32 and 128,295.19
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Solution
The fourth proportional to 235,721.26, 325,303.32 and 128,295.19 is: 177,051.71
Step by Step Solution
- Step 1: Write the proportion equation
235,721.26 : 325,303.32 = 128,295.19 : x - Step 2: Convert to fraction form
235,721.26/325,303.32 = 128,295.19/x - Step 3: Cross multiply
235,721.26x = 325,303.32 × 128,295.19 - Step 4: Simplify right side
235,721.26x = 41,734,851,247.03 - Step 5: Solve for x
x = 41,734,851,247.03/235,721.26 - Step 6: Final answer
x = 177,051.71
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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.