Finding the Fourth Proportional to 165,814.24, 248,794.80 and 86,909.62
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Solution
The fourth proportional to 165,814.24, 248,794.80 and 86,909.62 is: 130,402.92
Step by Step Solution
- Step 1: Write the proportion equation
165,814.24 : 248,794.80 = 86,909.62 : x - Step 2: Convert to fraction form
165,814.24/248,794.80 = 86,909.62/x - Step 3: Cross multiply
165,814.24x = 248,794.80 × 86,909.62 - Step 4: Simplify right side
165,814.24x = 21,622,661,525.98 - Step 5: Solve for x
x = 21,622,661,525.98/165,814.24 - Step 6: Final answer
x = 130,402.92
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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.