Finding the Fourth Proportional to 249,865.14, 344,812.60 and 135,143.66
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Solution
The fourth proportional to 249,865.14, 344,812.60 and 135,143.66 is: 186,497.55
Step by Step Solution
- Step 1: Write the proportion equation
249,865.14 : 344,812.60 = 135,143.66 : x - Step 2: Convert to fraction form
249,865.14/344,812.60 = 135,143.66/x - Step 3: Cross multiply
249,865.14x = 344,812.60 × 135,143.66 - Step 4: Simplify right side
249,865.14x = 46,599,236,102.40 - Step 5: Solve for x
x = 46,599,236,102.40/249,865.14 - Step 6: Final answer
x = 186,497.55
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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.