Finding the Fourth Proportional to 165,420.44, 248,155.26 and 76,682.91
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Solution
The fourth proportional to 165,420.44, 248,155.26 and 76,682.91 is: 115,035.77
Step by Step Solution
- Step 1: Write the proportion equation
165,420.44 : 248,155.26 = 76,682.91 : x - Step 2: Convert to fraction form
165,420.44/248,155.26 = 76,682.91/x - Step 3: Cross multiply
165,420.44x = 248,155.26 × 76,682.91 - Step 4: Simplify right side
165,420.44x = 19,029,267,085.19 - Step 5: Solve for x
x = 19,029,267,085.19/165,420.44 - Step 6: Final answer
x = 115,035.77
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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.