Finding the Fourth Proportional to 257,201.52, 355,031.26 and 209,371.82
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Solution
The fourth proportional to 257,201.52, 355,031.26 and 209,371.82 is: 289,008.95
Step by Step Solution
- Step 1: Write the proportion equation
257,201.52 : 355,031.26 = 209,371.82 : x - Step 2: Convert to fraction form
257,201.52/355,031.26 = 209,371.82/x - Step 3: Cross multiply
257,201.52x = 355,031.26 × 209,371.82 - Step 4: Simplify right side
257,201.52x = 74,333,541,063.09 - Step 5: Solve for x
x = 74,333,541,063.09/257,201.52 - Step 6: Final answer
x = 289,008.95
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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.