Finding the Fourth Proportional to 268,589.11, 370,684.48 and 153,904.88
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Solution
The fourth proportional to 268,589.11, 370,684.48 and 153,904.88 is: 212,406.79
Step by Step Solution
- Step 1: Write the proportion equation
268,589.11 : 370,684.48 = 153,904.88 : x - Step 2: Convert to fraction form
268,589.11/370,684.48 = 153,904.88/x - Step 3: Cross multiply
268,589.11x = 370,684.48 × 153,904.88 - Step 4: Simplify right side
268,589.11x = 57,050,150,412.26 - Step 5: Solve for x
x = 57,050,150,412.26/268,589.11 - Step 6: Final answer
x = 212,406.79
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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.