Finding the Fourth Proportional to 319,478.36, 440,877.67 and 176,244.44
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Solution
The fourth proportional to 319,478.36, 440,877.67 and 176,244.44 is: 243,215.96
Step by Step Solution
- Step 1: Write the proportion equation
319,478.36 : 440,877.67 = 176,244.44 : x - Step 2: Convert to fraction form
319,478.36/440,877.67 = 176,244.44/x - Step 3: Cross multiply
319,478.36x = 440,877.67 × 176,244.44 - Step 4: Simplify right side
319,478.36x = 77,702,235,412.66 - Step 5: Solve for x
x = 77,702,235,412.66/319,478.36 - Step 6: Final answer
x = 243,215.96
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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.