Finding the Fourth Proportional to 407,015.18, 610,405.99 and 137,114.02
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Solution
The fourth proportional to 407,015.18, 610,405.99 and 137,114.02 is: 205,631.69
Step by Step Solution
- Step 1: Write the proportion equation
407,015.18 : 610,405.99 = 137,114.02 : x - Step 2: Convert to fraction form
407,015.18/610,405.99 = 137,114.02/x - Step 3: Cross multiply
407,015.18x = 610,405.99 × 137,114.02 - Step 4: Simplify right side
407,015.18x = 83,695,219,120.98 - Step 5: Solve for x
x = 83,695,219,120.98/407,015.18 - Step 6: Final answer
x = 205,631.69
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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.