Finding the Fourth Proportional to 249,640.21, 344,503.02 and 136,462.96
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Solution
The fourth proportional to 249,640.21, 344,503.02 and 136,462.96 is: 188,318.63
Step by Step Solution
- Step 1: Write the proportion equation
249,640.21 : 344,503.02 = 136,462.96 : x - Step 2: Convert to fraction form
249,640.21/344,503.02 = 136,462.96/x - Step 3: Cross multiply
249,640.21x = 344,503.02 × 136,462.96 - Step 4: Simplify right side
249,640.21x = 47,011,901,838.14 - Step 5: Solve for x
x = 47,011,901,838.14/249,640.21 - Step 6: Final answer
x = 188,318.63
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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.