Finding the Fourth Proportional to 378,009.40, 521,652.97 and 208,243.53
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Solution
The fourth proportional to 378,009.40, 521,652.97 and 208,243.53 is: 287,376.06
Step by Step Solution
- Step 1: Write the proportion equation
378,009.40 : 521,652.97 = 208,243.53 : x - Step 2: Convert to fraction form
378,009.40/521,652.97 = 208,243.53/x - Step 3: Cross multiply
378,009.40x = 521,652.97 × 208,243.53 - Step 4: Simplify right side
378,009.40x = 108,630,852,258.30 - Step 5: Solve for x
x = 108,630,852,258.30/378,009.40 - Step 6: Final answer
x = 287,376.06
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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.