Finding the Fourth Proportional to 225,346.91, 310,978.80 and 123,378.84
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Solution
The fourth proportional to 225,346.91, 310,978.80 and 123,378.84 is: 170,262.84
Step by Step Solution
- Step 1: Write the proportion equation
225,346.91 : 310,978.80 = 123,378.84 : x - Step 2: Convert to fraction form
225,346.91/310,978.80 = 123,378.84/x - Step 3: Cross multiply
225,346.91x = 310,978.80 × 123,378.84 - Step 4: Simplify right side
225,346.91x = 38,368,203,608.59 - Step 5: Solve for x
x = 38,368,203,608.59/225,346.91 - Step 6: Final answer
x = 170,262.84
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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.