Finding the Fourth Proportional to 305,355.81, 458,036.66 and 115,765.19
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Solution
The fourth proportional to 305,355.81, 458,036.66 and 115,765.19 is: 173,648.90
Step by Step Solution
- Step 1: Write the proportion equation
305,355.81 : 458,036.66 = 115,765.19 : x - Step 2: Convert to fraction form
305,355.81/458,036.66 = 115,765.19/x - Step 3: Cross multiply
305,355.81x = 458,036.66 × 115,765.19 - Step 4: Simplify right side
305,355.81x = 53,024,700,971.87 - Step 5: Solve for x
x = 53,024,700,971.87/305,355.81 - Step 6: Final answer
x = 173,648.90
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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.