Finding the Fourth Proportional to 408,742.80, 612,489.60 and 171,955.68
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Solution
The fourth proportional to 408,742.80, 612,489.60 and 171,955.68 is: 257,670.75
Step by Step Solution
- Step 1: Write the proportion equation
408,742.80 : 612,489.60 = 171,955.68 : x - Step 2: Convert to fraction form
408,742.80/612,489.60 = 171,955.68/x - Step 3: Cross multiply
408,742.80x = 612,489.60 × 171,955.68 - Step 4: Simplify right side
408,742.80x = 105,321,065,660.93 - Step 5: Solve for x
x = 105,321,065,660.93/408,742.80 - Step 6: Final answer
x = 257,670.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.