Finding the Fourth Proportional to 403,721.93, 605,130.28 and 163,780.09
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Solution
The fourth proportional to 403,721.93, 605,130.28 and 163,780.09 is: 245,486.51
Step by Step Solution
- Step 1: Write the proportion equation
403,721.93 : 605,130.28 = 163,780.09 : x - Step 2: Convert to fraction form
403,721.93/605,130.28 = 163,780.09/x - Step 3: Cross multiply
403,721.93x = 605,130.28 × 163,780.09 - Step 4: Simplify right side
403,721.93x = 99,108,289,797.85 - Step 5: Solve for x
x = 99,108,289,797.85/403,721.93 - Step 6: Final answer
x = 245,486.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.