Finding the Fourth Proportional to 290,862.40, 401,461.36 and 177,779.92
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Solution
The fourth proportional to 290,862.40, 401,461.36 and 177,779.92 is: 245,379.84
Step by Step Solution
- Step 1: Write the proportion equation
290,862.40 : 401,461.36 = 177,779.92 : x - Step 2: Convert to fraction form
290,862.40/401,461.36 = 177,779.92/x - Step 3: Cross multiply
290,862.40x = 401,461.36 × 177,779.92 - Step 4: Simplify right side
290,862.40x = 71,371,768,463.89 - Step 5: Solve for x
x = 71,371,768,463.89/290,862.40 - Step 6: Final answer
x = 245,379.84
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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.