Finding the Fourth Proportional to 249,859.44, 344,765.16 and 142,431.48
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Solution
The fourth proportional to 249,859.44, 344,765.16 and 142,431.48 is: 196,532.15
Step by Step Solution
- Step 1: Write the proportion equation
249,859.44 : 344,765.16 = 142,431.48 : x - Step 2: Convert to fraction form
249,859.44/344,765.16 = 142,431.48/x - Step 3: Cross multiply
249,859.44x = 344,765.16 × 142,431.48 - Step 4: Simplify right side
249,859.44x = 49,105,411,991.24 - Step 5: Solve for x
x = 49,105,411,991.24/249,859.44 - Step 6: Final answer
x = 196,532.15
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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.