Finding the Fourth Proportional to 318,858.87, 440,056.29 and 238,146.26
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Solution
The fourth proportional to 318,858.87, 440,056.29 and 238,146.26 is: 328,665.02
Step by Step Solution
- Step 1: Write the proportion equation
318,858.87 : 440,056.29 = 238,146.26 : x - Step 2: Convert to fraction form
318,858.87/440,056.29 = 238,146.26/x - Step 3: Cross multiply
318,858.87x = 440,056.29 × 238,146.26 - Step 4: Simplify right side
318,858.87x = 104,797,758,345.74 - Step 5: Solve for x
x = 104,797,758,345.74/318,858.87 - Step 6: Final answer
x = 328,665.02
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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.