Finding the Fourth Proportional to 399,190.87, 598,908.11 and 239,444.19
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Solution
The fourth proportional to 399,190.87, 598,908.11 and 239,444.19 is: 359,239.35
Step by Step Solution
- Step 1: Write the proportion equation
399,190.87 : 598,908.11 = 239,444.19 : x - Step 2: Convert to fraction form
399,190.87/598,908.11 = 239,444.19/x - Step 3: Cross multiply
399,190.87x = 598,908.11 × 239,444.19 - Step 4: Simplify right side
399,190.87x = 143,405,067,283.38 - Step 5: Solve for x
x = 143,405,067,283.38/399,190.87 - Step 6: Final answer
x = 359,239.35
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1.5x scale
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.