Finding the Fourth Proportional to 249,442.14, 344,237.70 and 136,272.18
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Solution
The fourth proportional to 249,442.14, 344,237.70 and 136,272.18 is: 188,059.73
Step by Step Solution
- Step 1: Write the proportion equation
249,442.14 : 344,237.70 = 136,272.18 : x - Step 2: Convert to fraction form
249,442.14/344,237.70 = 136,272.18/x - Step 3: Cross multiply
249,442.14x = 344,237.70 × 136,272.18 - Step 4: Simplify right side
249,442.14x = 46,910,021,817.19 - Step 5: Solve for x
x = 46,910,021,817.19/249,442.14 - Step 6: Final answer
x = 188,059.73
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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.