Finding the Fourth Proportional to 319,497.62, 478,993.91 and 159,491.43
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Solution
The fourth proportional to 319,497.62, 478,993.91 and 159,491.43 is: 239,111.09
Step by Step Solution
- Step 1: Write the proportion equation
319,497.62 : 478,993.91 = 159,491.43 : x - Step 2: Convert to fraction form
319,497.62/478,993.91 = 159,491.43/x - Step 3: Cross multiply
319,497.62x = 478,993.91 × 159,491.43 - Step 4: Simplify right side
319,497.62x = 76,395,422,869.73 - Step 5: Solve for x
x = 76,395,422,869.73/319,497.62 - Step 6: Final answer
x = 239,111.09
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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.