Finding the Fourth Proportional to 393,686.16, 590,243.16 and 156,957.84
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Solution
The fourth proportional to 393,686.16, 590,243.16 and 156,957.84 is: 235,322.70
Step by Step Solution
- Step 1: Write the proportion equation
393,686.16 : 590,243.16 = 156,957.84 : x - Step 2: Convert to fraction form
393,686.16/590,243.16 = 156,957.84/x - Step 3: Cross multiply
393,686.16x = 590,243.16 × 156,957.84 - Step 4: Simplify right side
393,686.16x = 92,643,291,468.37 - Step 5: Solve for x
x = 92,643,291,468.37/393,686.16 - Step 6: Final answer
x = 235,322.70
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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.