Finding the Fourth Proportional to 305,485.76, 458,233.84 and 105,812.06
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Solution
The fourth proportional to 305,485.76, 458,233.84 and 105,812.06 is: 158,719.89
Step by Step Solution
- Step 1: Write the proportion equation
305,485.76 : 458,233.84 = 105,812.06 : x - Step 2: Convert to fraction form
305,485.76/458,233.84 = 105,812.06/x - Step 3: Cross multiply
305,485.76x = 458,233.84 × 105,812.06 - Step 4: Simplify right side
305,485.76x = 48,486,666,572.11 - Step 5: Solve for x
x = 48,486,666,572.11/305,485.76 - Step 6: Final answer
x = 158,719.89
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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.