Finding the Fourth Proportional to 202,643.96, 279,682.68 and 137,203.10
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Solution
The fourth proportional to 202,643.96, 279,682.68 and 137,203.10 is: 189,363.31
Step by Step Solution
- Step 1: Write the proportion equation
202,643.96 : 279,682.68 = 137,203.10 : x - Step 2: Convert to fraction form
202,643.96/279,682.68 = 137,203.10/x - Step 3: Cross multiply
202,643.96x = 279,682.68 × 137,203.10 - Step 4: Simplify right side
202,643.96x = 38,373,330,712.31 - Step 5: Solve for x
x = 38,373,330,712.31/202,643.96 - Step 6: Final answer
x = 189,363.31
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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.