Finding the Fourth Proportional to 354,473.28, 489,215.19 and 201,534.54
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Solution
The fourth proportional to 354,473.28, 489,215.19 and 201,534.54 is: 278,141.58
Step by Step Solution
- Step 1: Write the proportion equation
354,473.28 : 489,215.19 = 201,534.54 : x - Step 2: Convert to fraction form
354,473.28/489,215.19 = 201,534.54/x - Step 3: Cross multiply
354,473.28x = 489,215.19 × 201,534.54 - Step 4: Simplify right side
354,473.28x = 98,593,758,277.66 - Step 5: Solve for x
x = 98,593,758,277.66/354,473.28 - Step 6: Final answer
x = 278,141.58
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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.