Finding the Fourth Proportional to 298,486.48, 411,778.20 and 201,659.17
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Solution
The fourth proportional to 298,486.48, 411,778.20 and 201,659.17 is: 278,199.70
Step by Step Solution
- Step 1: Write the proportion equation
298,486.48 : 411,778.20 = 201,659.17 : x - Step 2: Convert to fraction form
298,486.48/411,778.20 = 201,659.17/x - Step 3: Cross multiply
298,486.48x = 411,778.20 × 201,659.17 - Step 4: Simplify right side
298,486.48x = 83,038,850,036.09 - Step 5: Solve for x
x = 83,038,850,036.09/298,486.48 - Step 6: Final answer
x = 278,199.70
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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.