Finding the Fourth Proportional to 354,447.96, 489,167.28 and 201,534.14
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Solution
The fourth proportional to 354,447.96, 489,167.28 and 201,534.14 is: 278,133.65
Step by Step Solution
- Step 1: Write the proportion equation
354,447.96 : 489,167.28 = 201,534.14 : x - Step 2: Convert to fraction form
354,447.96/489,167.28 = 201,534.14/x - Step 3: Cross multiply
354,447.96x = 489,167.28 × 201,534.14 - Step 4: Simplify right side
354,447.96x = 98,583,904,645.10 - Step 5: Solve for x
x = 98,583,904,645.10/354,447.96 - Step 6: Final answer
x = 278,133.65
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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.