Finding the Fourth Proportional to 270,128.19, 372,799.35 and 149,293.07
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Solution
The fourth proportional to 270,128.19, 372,799.35 and 149,293.07 is: 206,036.84
Step by Step Solution
- Step 1: Write the proportion equation
270,128.19 : 372,799.35 = 149,293.07 : x - Step 2: Convert to fraction form
270,128.19/372,799.35 = 149,293.07/x - Step 3: Cross multiply
270,128.19x = 372,799.35 × 149,293.07 - Step 4: Simplify right side
270,128.19x = 55,656,357,591.51 - Step 5: Solve for x
x = 55,656,357,591.51/270,128.19 - Step 6: Final answer
x = 206,036.84
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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.