Finding the Fourth Proportional to 419,980.22, 579,558.26 and 238,688.99
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Solution
The fourth proportional to 419,980.22, 579,558.26 and 238,688.99 is: 329,382.60
Step by Step Solution
- Step 1: Write the proportion equation
419,980.22 : 579,558.26 = 238,688.99 : x - Step 2: Convert to fraction form
419,980.22/579,558.26 = 238,688.99/x - Step 3: Cross multiply
419,980.22x = 579,558.26 × 238,688.99 - Step 4: Simplify right side
419,980.22x = 138,334,173,424.49 - Step 5: Solve for x
x = 138,334,173,424.49/419,980.22 - Step 6: Final answer
x = 329,382.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.