Finding the Fourth Proportional to 235,842.22, 325,462.65 and 128,412.68
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Solution
The fourth proportional to 235,842.22, 325,462.65 and 128,412.68 is: 177,209.71
Step by Step Solution
- Step 1: Write the proportion equation
235,842.22 : 325,462.65 = 128,412.68 : x - Step 2: Convert to fraction form
235,842.22/325,462.65 = 128,412.68/x - Step 3: Cross multiply
235,842.22x = 325,462.65 × 128,412.68 - Step 4: Simplify right side
235,842.22x = 41,793,531,126.40 - Step 5: Solve for x
x = 41,793,531,126.40/235,842.22 - Step 6: Final answer
x = 177,209.71
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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.