Finding the Fourth Proportional to 230,260.92, 317,783.42 and 128,302.98
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Solution
The fourth proportional to 230,260.92, 317,783.42 and 128,302.98 is: 177,071.12
Step by Step Solution
- Step 1: Write the proportion equation
230,260.92 : 317,783.42 = 128,302.98 : x - Step 2: Convert to fraction form
230,260.92/317,783.42 = 128,302.98/x - Step 3: Cross multiply
230,260.92x = 317,783.42 × 128,302.98 - Step 4: Simplify right side
230,260.92x = 40,772,559,780.59 - Step 5: Solve for x
x = 40,772,559,780.59/230,260.92 - Step 6: Final answer
x = 177,071.12
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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.