Finding the Fourth Proportional to 394,038.60, 591,130.80 and 127,807.80
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Solution
The fourth proportional to 394,038.60, 591,130.80 and 127,807.80 is: 191,735.35
Step by Step Solution
- Step 1: Write the proportion equation
394,038.60 : 591,130.80 = 127,807.80 : x - Step 2: Convert to fraction form
394,038.60/591,130.80 = 127,807.80/x - Step 3: Cross multiply
394,038.60x = 591,130.80 × 127,807.80 - Step 4: Simplify right side
394,038.60x = 75,551,127,060.24 - Step 5: Solve for x
x = 75,551,127,060.24/394,038.60 - Step 6: Final answer
x = 191,735.35
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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.