Finding the Fourth Proportional to 369,438.81, 509,485.35 and 233,236.09
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Solution
The fourth proportional to 369,438.81, 509,485.35 and 233,236.09 is: 321,651.02
Step by Step Solution
- Step 1: Write the proportion equation
369,438.81 : 509,485.35 = 233,236.09 : x - Step 2: Convert to fraction form
369,438.81/509,485.35 = 233,236.09/x - Step 3: Cross multiply
369,438.81x = 509,485.35 × 233,236.09 - Step 4: Simplify right side
369,438.81x = 118,830,370,946.28 - Step 5: Solve for x
x = 118,830,370,946.28/369,438.81 - Step 6: Final answer
x = 321,651.02
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1.5x scale
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.