Finding the Fourth Proportional to 340,783.70, 511,175.46 and 91,465.70
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Solution
The fourth proportional to 340,783.70, 511,175.46 and 91,465.70 is: 137,198.53
Step by Step Solution
- Step 1: Write the proportion equation
340,783.70 : 511,175.46 = 91,465.70 : x - Step 2: Convert to fraction form
340,783.70/511,175.46 = 91,465.70/x - Step 3: Cross multiply
340,783.70x = 511,175.46 × 91,465.70 - Step 4: Simplify right side
340,783.70x = 46,755,021,271.72 - Step 5: Solve for x
x = 46,755,021,271.72/340,783.70 - Step 6: Final answer
x = 137,198.53
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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.