Finding the Fourth Proportional to 371,911.08, 513,243.12 and 202,145.64
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Solution
The fourth proportional to 371,911.08, 513,243.12 and 202,145.64 is: 278,964.15
Step by Step Solution
- Step 1: Write the proportion equation
371,911.08 : 513,243.12 = 202,145.64 : x - Step 2: Convert to fraction form
371,911.08/513,243.12 = 202,145.64/x - Step 3: Cross multiply
371,911.08x = 513,243.12 × 202,145.64 - Step 4: Simplify right side
371,911.08x = 103,749,858,968.00 - Step 5: Solve for x
x = 103,749,858,968.00/371,911.08 - Step 6: Final answer
x = 278,964.15
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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.