Finding the Fourth Proportional to 399,639.48, 599,069.60 and 159,681.84
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Solution
The fourth proportional to 399,639.48, 599,069.60 and 159,681.84 is: 239,367.08
Step by Step Solution
- Step 1: Write the proportion equation
399,639.48 : 599,069.60 = 159,681.84 : x - Step 2: Convert to fraction form
399,639.48/599,069.60 = 159,681.84/x - Step 3: Cross multiply
399,639.48x = 599,069.60 × 159,681.84 - Step 4: Simplify right side
399,639.48x = 95,660,536,016.06 - Step 5: Solve for x
x = 95,660,536,016.06/399,639.48 - Step 6: Final answer
x = 239,367.08
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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.