Finding the Fourth Proportional to 243,874.97, 365,929.08 and 86,177.69
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Solution
The fourth proportional to 243,874.97, 365,929.08 and 86,177.69 is: 129,307.75
Step by Step Solution
- Step 1: Write the proportion equation
243,874.97 : 365,929.08 = 86,177.69 : x - Step 2: Convert to fraction form
243,874.97/365,929.08 = 86,177.69/x - Step 3: Cross multiply
243,874.97x = 365,929.08 × 86,177.69 - Step 4: Simplify right side
243,874.97x = 31,534,922,818.23 - Step 5: Solve for x
x = 31,534,922,818.23/243,874.97 - Step 6: Final answer
x = 129,307.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.