Finding the Fourth Proportional to 240,349.38, 331,707.06 and 138,378.48
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Solution
The fourth proportional to 240,349.38, 331,707.06 and 138,378.48 is: 190,976.65
Step by Step Solution
- Step 1: Write the proportion equation
240,349.38 : 331,707.06 = 138,378.48 : x - Step 2: Convert to fraction form
240,349.38/331,707.06 = 138,378.48/x - Step 3: Cross multiply
240,349.38x = 331,707.06 × 138,378.48 - Step 4: Simplify right side
240,349.38x = 45,901,118,768.07 - Step 5: Solve for x
x = 45,901,118,768.07/240,349.38 - Step 6: Final answer
x = 190,976.65
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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.