Finding the Fourth Proportional to 306,227.96, 458,874.16 and 128,637.88
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Solution
The fourth proportional to 306,227.96, 458,874.16 and 128,637.88 is: 192,760.32
Step by Step Solution
- Step 1: Write the proportion equation
306,227.96 : 458,874.16 = 128,637.88 : x - Step 2: Convert to fraction form
306,227.96/458,874.16 = 128,637.88/x - Step 3: Cross multiply
306,227.96x = 458,874.16 × 128,637.88 - Step 4: Simplify right side
306,227.96x = 59,028,599,129.18 - Step 5: Solve for x
x = 59,028,599,129.18/306,227.96 - Step 6: Final answer
x = 192,760.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.