Finding the Fourth Proportional to 351,940.19, 485,681.28 and 206,752.08
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Solution
The fourth proportional to 351,940.19, 485,681.28 and 206,752.08 is: 285,320.12
Step by Step Solution
- Step 1: Write the proportion equation
351,940.19 : 485,681.28 = 206,752.08 : x - Step 2: Convert to fraction form
351,940.19/485,681.28 = 206,752.08/x - Step 3: Cross multiply
351,940.19x = 485,681.28 × 206,752.08 - Step 4: Simplify right side
351,940.19x = 100,415,614,857.06 - Step 5: Solve for x
x = 100,415,614,857.06/351,940.19 - Step 6: Final answer
x = 285,320.12
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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.