Finding the Fourth Proportional to 408,675.45, 613,062.36 and 135,130.95
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Solution
The fourth proportional to 408,675.45, 613,062.36 and 135,130.95 is: 202,712.69
Step by Step Solution
- Step 1: Write the proportion equation
408,675.45 : 613,062.36 = 135,130.95 : x - Step 2: Convert to fraction form
408,675.45/613,062.36 = 135,130.95/x - Step 3: Cross multiply
408,675.45x = 613,062.36 × 135,130.95 - Step 4: Simplify right side
408,675.45x = 82,843,699,116.04 - Step 5: Solve for x
x = 82,843,699,116.04/408,675.45 - Step 6: Final answer
x = 202,712.69
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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.