Finding the Fourth Proportional to 190,734.99, 263,132.06 and 115,239.75
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Solution
The fourth proportional to 190,734.99, 263,132.06 and 115,239.75 is: 158,981.17
Step by Step Solution
- Step 1: Write the proportion equation
190,734.99 : 263,132.06 = 115,239.75 : x - Step 2: Convert to fraction form
190,734.99/263,132.06 = 115,239.75/x - Step 3: Cross multiply
190,734.99x = 263,132.06 × 115,239.75 - Step 4: Simplify right side
190,734.99x = 30,323,272,235.19 - Step 5: Solve for x
x = 30,323,272,235.19/190,734.99 - Step 6: Final answer
x = 158,981.17
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1.5x scale
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.