Finding the Fourth Proportional to 438,538.08, 605,117.80 and 257,181.48
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Solution
The fourth proportional to 438,538.08, 605,117.80 and 257,181.48 is: 354,872.47
Step by Step Solution
- Step 1: Write the proportion equation
438,538.08 : 605,117.80 = 257,181.48 : x - Step 2: Convert to fraction form
438,538.08/605,117.80 = 257,181.48/x - Step 3: Cross multiply
438,538.08x = 605,117.80 × 257,181.48 - Step 4: Simplify right side
438,538.08x = 155,625,091,378.34 - Step 5: Solve for x
x = 155,625,091,378.34/438,538.08 - Step 6: Final answer
x = 354,872.47
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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.