Finding the Fourth Proportional to 286,303.36, 395,091.12 and 158,975.68
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Solution
The fourth proportional to 286,303.36, 395,091.12 and 158,975.68 is: 219,382.26
Step by Step Solution
- Step 1: Write the proportion equation
286,303.36 : 395,091.12 = 158,975.68 : x - Step 2: Convert to fraction form
286,303.36/395,091.12 = 158,975.68/x - Step 3: Cross multiply
286,303.36x = 395,091.12 × 158,975.68 - Step 4: Simplify right side
286,303.36x = 62,809,879,463.96 - Step 5: Solve for x
x = 62,809,879,463.96/286,303.36 - Step 6: Final answer
x = 219,382.26
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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.