Finding the Fourth Proportional to 286,425.76, 395,203.92 and 173,246.08
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Solution
The fourth proportional to 286,425.76, 395,203.92 and 173,246.08 is: 239,041.10
Step by Step Solution
- Step 1: Write the proportion equation
286,425.76 : 395,203.92 = 173,246.08 : x - Step 2: Convert to fraction form
286,425.76/395,203.92 = 173,246.08/x - Step 3: Cross multiply
286,425.76x = 395,203.92 × 173,246.08 - Step 4: Simplify right side
286,425.76x = 68,467,529,940.63 - Step 5: Solve for x
x = 68,467,529,940.63/286,425.76 - Step 6: Final answer
x = 239,041.10
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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.