Finding the Fourth Proportional to 150,447.36, 207,609.36 and 86,781.36
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Solution
The fourth proportional to 150,447.36, 207,609.36 and 86,781.36 is: 119,753.66
Step by Step Solution
- Step 1: Write the proportion equation
150,447.36 : 207,609.36 = 86,781.36 : x - Step 2: Convert to fraction form
150,447.36/207,609.36 = 86,781.36/x - Step 3: Cross multiply
150,447.36x = 207,609.36 × 86,781.36 - Step 4: Simplify right side
150,447.36x = 18,016,622,609.53 - Step 5: Solve for x
x = 18,016,622,609.53/150,447.36 - Step 6: Final answer
x = 119,753.66
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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.