Finding the Fourth Proportional to 354,459.68, 489,134.90 and 201,476.60
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Solution
The fourth proportional to 354,459.68, 489,134.90 and 201,476.60 is: 278,026.65
Step by Step Solution
- Step 1: Write the proportion equation
354,459.68 : 489,134.90 = 201,476.60 : x - Step 2: Convert to fraction form
354,459.68/489,134.90 = 201,476.60/x - Step 3: Cross multiply
354,459.68x = 489,134.90 × 201,476.60 - Step 4: Simplify right side
354,459.68x = 98,549,236,593.34 - Step 5: Solve for x
x = 98,549,236,593.34/354,459.68 - Step 6: Final answer
x = 278,026.65
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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.