Finding the Fourth Proportional to 438,402.66, 605,056.66 and 257,173.26
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Solution
The fourth proportional to 438,402.66, 605,056.66 and 257,173.26 is: 354,934.88
Step by Step Solution
- Step 1: Write the proportion equation
438,402.66 : 605,056.66 = 257,173.26 : x - Step 2: Convert to fraction form
438,402.66/605,056.66 = 257,173.26/x - Step 3: Cross multiply
438,402.66x = 605,056.66 × 257,173.26 - Step 4: Simplify right side
438,402.66x = 155,604,393,736.91 - Step 5: Solve for x
x = 155,604,393,736.91/438,402.66 - Step 6: Final answer
x = 354,934.88
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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.