Finding the Fourth Proportional to 207,702.86, 286,725.54 and 121,649.88
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Solution
The fourth proportional to 207,702.86, 286,725.54 and 121,649.88 is: 167,932.82
Step by Step Solution
- Step 1: Write the proportion equation
207,702.86 : 286,725.54 = 121,649.88 : x - Step 2: Convert to fraction form
207,702.86/286,725.54 = 121,649.88/x - Step 3: Cross multiply
207,702.86x = 286,725.54 × 121,649.88 - Step 4: Simplify right side
207,702.86x = 34,880,127,533.94 - Step 5: Solve for x
x = 34,880,127,533.94/207,702.86 - Step 6: Final answer
x = 167,932.82
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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.