Finding the Fourth Proportional to 310,212.58, 427,984.36 and 202,845.46
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Solution
The fourth proportional to 310,212.58, 427,984.36 and 202,845.46 is: 279,855.46
Step by Step Solution
- Step 1: Write the proportion equation
310,212.58 : 427,984.36 = 202,845.46 : x - Step 2: Convert to fraction form
310,212.58/427,984.36 = 202,845.46/x - Step 3: Cross multiply
310,212.58x = 427,984.36 × 202,845.46 - Step 4: Simplify right side
310,212.58x = 86,814,684,377.01 - Step 5: Solve for x
x = 86,814,684,377.01/310,212.58 - Step 6: Final answer
x = 279,855.46
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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.