Finding the Fourth Proportional to 401,521.57, 602,149.64 and 135,215.98
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Solution
The fourth proportional to 401,521.57, 602,149.64 and 135,215.98 is: 202,779.28
Step by Step Solution
- Step 1: Write the proportion equation
401,521.57 : 602,149.64 = 135,215.98 : x - Step 2: Convert to fraction form
401,521.57/602,149.64 = 135,215.98/x - Step 3: Cross multiply
401,521.57x = 602,149.64 × 135,215.98 - Step 4: Simplify right side
401,521.57x = 81,420,253,679.25 - Step 5: Solve for x
x = 81,420,253,679.25/401,521.57 - Step 6: Final answer
x = 202,779.28
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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.