Finding the Fourth Proportional to 218,609.34, 327,864.79 and 142,683.99
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Solution
The fourth proportional to 218,609.34, 327,864.79 and 142,683.99 is: 213,993.86
Step by Step Solution
- Step 1: Write the proportion equation
218,609.34 : 327,864.79 = 142,683.99 : x - Step 2: Convert to fraction form
218,609.34/327,864.79 = 142,683.99/x - Step 3: Cross multiply
218,609.34x = 327,864.79 × 142,683.99 - Step 4: Simplify right side
218,609.34x = 46,781,056,417.71 - Step 5: Solve for x
x = 46,781,056,417.71/218,609.34 - Step 6: Final answer
x = 213,993.86
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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.