Finding the Fourth Proportional to 249,608.57, 344,459.99 and 136,431.32
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Solution
The fourth proportional to 249,608.57, 344,459.99 and 136,431.32 is: 188,275.31
Step by Step Solution
- Step 1: Write the proportion equation
249,608.57 : 344,459.99 = 136,431.32 : x - Step 2: Convert to fraction form
249,608.57/344,459.99 = 136,431.32/x - Step 3: Cross multiply
249,608.57x = 344,459.99 × 136,431.32 - Step 4: Simplify right side
249,608.57x = 46,995,129,741.67 - Step 5: Solve for x
x = 46,995,129,741.67/249,608.57 - Step 6: Final answer
x = 188,275.31
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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.