Finding the Fourth Proportional to 249,975.40, 344,964.42 and 136,797.80
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Solution
The fourth proportional to 249,975.40, 344,964.42 and 136,797.80 is: 188,780.07
Step by Step Solution
- Step 1: Write the proportion equation
249,975.40 : 344,964.42 = 136,797.80 : x - Step 2: Convert to fraction form
249,975.40/344,964.42 = 136,797.80/x - Step 3: Cross multiply
249,975.40x = 344,964.42 × 136,797.80 - Step 4: Simplify right side
249,975.40x = 47,190,373,734.28 - Step 5: Solve for x
x = 47,190,373,734.28/249,975.40 - Step 6: Final answer
x = 188,780.07
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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.