Finding the Fourth Proportional to 305,603.08, 421,782.19 and 169,681.03
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Solution
The fourth proportional to 305,603.08, 421,782.19 and 169,681.03 is: 234,187.55
Step by Step Solution
- Step 1: Write the proportion equation
305,603.08 : 421,782.19 = 169,681.03 : x - Step 2: Convert to fraction form
305,603.08/421,782.19 = 169,681.03/x - Step 3: Cross multiply
305,603.08x = 421,782.19 × 169,681.03 - Step 4: Simplify right side
305,603.08x = 71,568,434,956.20 - Step 5: Solve for x
x = 71,568,434,956.20/305,603.08 - Step 6: Final answer
x = 234,187.55
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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.