Finding the Fourth Proportional to 419,741.28, 579,214.80 and 238,491.36
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Solution
The fourth proportional to 419,741.28, 579,214.80 and 238,491.36 is: 329,102.07
Step by Step Solution
- Step 1: Write the proportion equation
419,741.28 : 579,214.80 = 238,491.36 : x - Step 2: Convert to fraction form
419,741.28/579,214.80 = 238,491.36/x - Step 3: Cross multiply
419,741.28x = 579,214.80 × 238,491.36 - Step 4: Simplify right side
419,741.28x = 138,137,725,384.13 - Step 5: Solve for x
x = 138,137,725,384.13/419,741.28 - Step 6: Final answer
x = 329,102.07
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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.