Finding the Fourth Proportional to 236,315.07, 326,110.86 and 128,878.70
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Solution
The fourth proportional to 236,315.07, 326,110.86 and 128,878.70 is: 177,850.45
Step by Step Solution
- Step 1: Write the proportion equation
236,315.07 : 326,110.86 = 128,878.70 : x - Step 2: Convert to fraction form
236,315.07/326,110.86 = 128,878.70/x - Step 3: Cross multiply
236,315.07x = 326,110.86 × 128,878.70 - Step 4: Simplify right side
236,315.07x = 42,028,742,062.13 - Step 5: Solve for x
x = 42,028,742,062.13/236,315.07 - Step 6: Final answer
x = 177,850.45
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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.