Finding the Fourth Proportional to 399,129.97, 598,870.25 and 209,546.28
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Solution
The fourth proportional to 399,129.97, 598,870.25 and 209,546.28 is: 314,411.45
Step by Step Solution
- Step 1: Write the proportion equation
399,129.97 : 598,870.25 = 209,546.28 : x - Step 2: Convert to fraction form
399,129.97/598,870.25 = 209,546.28/x - Step 3: Cross multiply
399,129.97x = 598,870.25 × 209,546.28 - Step 4: Simplify right side
399,129.97x = 125,491,033,090.17 - Step 5: Solve for x
x = 125,491,033,090.17/399,129.97 - Step 6: Final answer
x = 314,411.45
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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.