Finding the Fourth Proportional to 199,354.16, 275,115.39 and 108,715.09
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Solution
The fourth proportional to 199,354.16, 275,115.39 and 108,715.09 is: 150,030.45
Step by Step Solution
- Step 1: Write the proportion equation
199,354.16 : 275,115.39 = 108,715.09 : x - Step 2: Convert to fraction form
199,354.16/275,115.39 = 108,715.09/x - Step 3: Cross multiply
199,354.16x = 275,115.39 × 108,715.09 - Step 4: Simplify right side
199,354.16x = 29,909,194,384.24 - Step 5: Solve for x
x = 29,909,194,384.24/199,354.16 - Step 6: Final answer
x = 150,030.45
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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.