Finding the Fourth Proportional to 286,985.94, 396,586.80 and 215,241.41
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Solution
The fourth proportional to 286,985.94, 396,586.80 and 215,241.41 is: 297,442.79
Step by Step Solution
- Step 1: Write the proportion equation
286,985.94 : 396,586.80 = 215,241.41 : x - Step 2: Convert to fraction form
286,985.94/396,586.80 = 215,241.41/x - Step 3: Cross multiply
286,985.94x = 396,586.80 × 215,241.41 - Step 4: Simplify right side
286,985.94x = 85,361,900,036.45 - Step 5: Solve for x
x = 85,361,900,036.45/286,985.94 - Step 6: Final answer
x = 297,442.79
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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.