Finding the Fourth Proportional to 310,239.74, 428,170.93 and 174,273.74
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Solution
The fourth proportional to 310,239.74, 428,170.93 and 174,273.74 is: 240,520.28
Step by Step Solution
- Step 1: Write the proportion equation
310,239.74 : 428,170.93 = 174,273.74 : x - Step 2: Convert to fraction form
310,239.74/428,170.93 = 174,273.74/x - Step 3: Cross multiply
310,239.74x = 428,170.93 × 174,273.74 - Step 4: Simplify right side
310,239.74x = 74,618,949,330.38 - Step 5: Solve for x
x = 74,618,949,330.38/310,239.74 - Step 6: Final answer
x = 240,520.28
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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.