Finding the Fourth Proportional to 438,582.12, 605,248.28 and 257,297.14
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Solution
The fourth proportional to 438,582.12, 605,248.28 and 257,297.14 is: 355,072.96
Step by Step Solution
- Step 1: Write the proportion equation
438,582.12 : 605,248.28 = 257,297.14 : x - Step 2: Convert to fraction form
438,582.12/605,248.28 = 257,297.14/x - Step 3: Cross multiply
438,582.12x = 605,248.28 × 257,297.14 - Step 4: Simplify right side
438,582.12x = 155,728,651,433.92 - Step 5: Solve for x
x = 155,728,651,433.92/438,582.12 - Step 6: Final answer
x = 355,072.96
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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.