Finding the Fourth Proportional to 249,897.68, 344,867.08 and 136,720.48
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Solution
The fourth proportional to 249,897.68, 344,867.08 and 136,720.48 is: 188,678.79
Step by Step Solution
- Step 1: Write the proportion equation
249,897.68 : 344,867.08 = 136,720.48 : x - Step 2: Convert to fraction form
249,897.68/344,867.08 = 136,720.48/x - Step 3: Cross multiply
249,897.68x = 344,867.08 × 136,720.48 - Step 4: Simplify right side
249,897.68x = 47,150,392,713.80 - Step 5: Solve for x
x = 47,150,392,713.80/249,897.68 - Step 6: Final answer
x = 188,678.79
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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.