Finding the Fourth Proportional to 239,305.11, 330,010.79 and 157,487.01
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Solution
The fourth proportional to 239,305.11, 330,010.79 and 157,487.01 is: 217,180.53
Step by Step Solution
- Step 1: Write the proportion equation
239,305.11 : 330,010.79 = 157,487.01 : x - Step 2: Convert to fraction form
239,305.11/330,010.79 = 157,487.01/x - Step 3: Cross multiply
239,305.11x = 330,010.79 × 157,487.01 - Step 4: Simplify right side
239,305.11x = 51,972,411,797.40 - Step 5: Solve for x
x = 51,972,411,797.40/239,305.11 - Step 6: Final answer
x = 217,180.53
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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.