Finding the Fourth Proportional to 286,319.76, 395,057.64 and 173,140.08
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Solution
The fourth proportional to 286,319.76, 395,057.64 and 173,140.08 is: 238,894.83
Step by Step Solution
- Step 1: Write the proportion equation
286,319.76 : 395,057.64 = 173,140.08 : x - Step 2: Convert to fraction form
286,319.76/395,057.64 = 173,140.08/x - Step 3: Cross multiply
286,319.76x = 395,057.64 × 173,140.08 - Step 4: Simplify right side
286,319.76x = 68,400,311,394.21 - Step 5: Solve for x
x = 68,400,311,394.21/286,319.76 - Step 6: Final answer
x = 238,894.83
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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.