Finding the Fourth Proportional to 235,708.98, 325,272.15 and 128,276.70
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Solution
The fourth proportional to 235,708.98, 325,272.15 and 128,276.70 is: 177,018.45
Step by Step Solution
- Step 1: Write the proportion equation
235,708.98 : 325,272.15 = 128,276.70 : x - Step 2: Convert to fraction form
235,708.98/325,272.15 = 128,276.70/x - Step 3: Cross multiply
235,708.98x = 325,272.15 × 128,276.70 - Step 4: Simplify right side
235,708.98x = 41,724,838,003.91 - Step 5: Solve for x
x = 41,724,838,003.91/235,708.98 - Step 6: Final answer
x = 177,018.45
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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.