Finding the Fourth Proportional to 239,710.96, 330,661.44 and 153,639.28
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Solution
The fourth proportional to 239,710.96, 330,661.44 and 153,639.28 is: 211,932.68
Step by Step Solution
- Step 1: Write the proportion equation
239,710.96 : 330,661.44 = 153,639.28 : x - Step 2: Convert to fraction form
239,710.96/330,661.44 = 153,639.28/x - Step 3: Cross multiply
239,710.96x = 330,661.44 × 153,639.28 - Step 4: Simplify right side
239,710.96x = 50,802,585,565.36 - Step 5: Solve for x
x = 50,802,585,565.36/239,710.96 - Step 6: Final answer
x = 211,932.68
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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.