Finding the Fourth Proportional to 165,739.36, 248,474.08 and 77,048.80
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Solution
The fourth proportional to 165,739.36, 248,474.08 and 77,048.80 is: 115,510.46
Step by Step Solution
- Step 1: Write the proportion equation
165,739.36 : 248,474.08 = 77,048.80 : x - Step 2: Convert to fraction form
165,739.36/248,474.08 = 77,048.80/x - Step 3: Cross multiply
165,739.36x = 248,474.08 × 77,048.80 - Step 4: Simplify right side
165,739.36x = 19,144,629,695.10 - Step 5: Solve for x
x = 19,144,629,695.10/165,739.36 - Step 6: Final answer
x = 115,510.46
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1.5x scale
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.