Finding the Fourth Proportional to 174,149.19, 240,143.40 and 128,922.03
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Solution
The fourth proportional to 174,149.19, 240,143.40 and 128,922.03 is: 177,777.31
Step by Step Solution
- Step 1: Write the proportion equation
174,149.19 : 240,143.40 = 128,922.03 : x - Step 2: Convert to fraction form
174,149.19/240,143.40 = 128,922.03/x - Step 3: Cross multiply
174,149.19x = 240,143.40 × 128,922.03 - Step 4: Simplify right side
174,149.19x = 30,959,774,619.10 - Step 5: Solve for x
x = 30,959,774,619.10/174,149.19 - Step 6: Final answer
x = 177,777.31
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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.