Finding the Fourth Proportional to 201,129.60, 277,558.40 and 137,465.92
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Solution
The fourth proportional to 201,129.60, 277,558.40 and 137,465.92 is: 189,702.66
Step by Step Solution
- Step 1: Write the proportion equation
201,129.60 : 277,558.40 = 137,465.92 : x - Step 2: Convert to fraction form
201,129.60/277,558.40 = 137,465.92/x - Step 3: Cross multiply
201,129.60x = 277,558.40 × 137,465.92 - Step 4: Simplify right side
201,129.60x = 38,154,820,809.73 - Step 5: Solve for x
x = 38,154,820,809.73/201,129.60 - Step 6: Final answer
x = 189,702.66
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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.