Finding the Fourth Proportional to 249,738.46, 344,639.05 and 136,561.21
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Solution
The fourth proportional to 249,738.46, 344,639.05 and 136,561.21 is: 188,454.46
Step by Step Solution
- Step 1: Write the proportion equation
249,738.46 : 344,639.05 = 136,561.21 : x - Step 2: Convert to fraction form
249,738.46/344,639.05 = 136,561.21/x - Step 3: Cross multiply
249,738.46x = 344,639.05 × 136,561.21 - Step 4: Simplify right side
249,738.46x = 47,064,325,681.25 - Step 5: Solve for x
x = 47,064,325,681.25/249,738.46 - Step 6: Final answer
x = 188,454.46
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1.5x scale
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.